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-rw-r--r--meta-agl-html5-demo/recipes-wam/cef/files/chromium/0002-agl-Add-waylandwindow-window-tree-host-essential-par.patch1376
1 files changed, 1376 insertions, 0 deletions
diff --git a/meta-agl-html5-demo/recipes-wam/cef/files/chromium/0002-agl-Add-waylandwindow-window-tree-host-essential-par.patch b/meta-agl-html5-demo/recipes-wam/cef/files/chromium/0002-agl-Add-waylandwindow-window-tree-host-essential-par.patch
new file mode 100644
index 000000000..488b398bb
--- /dev/null
+++ b/meta-agl-html5-demo/recipes-wam/cef/files/chromium/0002-agl-Add-waylandwindow-window-tree-host-essential-par.patch
@@ -0,0 +1,1376 @@
+From d50bcc010ca2856979f58b2ffbd0015514c4231f Mon Sep 17 00:00:00 2001
+From: Roger Zanoni <rzanoni@igalia.com>
+Date: Wed, 17 May 2023 21:25:53 +0200
+Subject: [PATCH 02/33] [agl] Add waylandwindow/window tree host essential
+ parts
+
+This is a backport of the work we did on top of chromium webosose to be
+able to communicate with the agl compositor.
+
+Signed-off-by: Roger Zanoni <rzanoni@igalia.com>
+---
+ ui/aura/BUILD.gn | 7 ++
+ ui/aura/agl/window_tree_host_agl.h | 42 +++++++++
+ ui/aura/agl/window_tree_host_platform_agl.cc | 50 +++++++++++
+ ui/aura/agl/window_tree_host_platform_agl.h | 51 +++++++++++
+ ui/aura/window_tree_host.h | 5 +-
+ ui/aura/window_tree_host_platform.cc | 4 +-
+ ui/aura/window_tree_host_platform.h | 4 +-
+ ui/ozone/platform/wayland/BUILD.gn | 1 -
+ .../platform/wayland/extensions/agl/BUILD.gn | 2 +
+ .../agl/host/wayland_extensions_agl.h | 10 ++-
+ .../agl/host/wayland_extensions_agl_impl.cc | 11 ++-
+ .../agl/host/wayland_extensions_agl_impl.h | 9 ++
+ .../extensions/agl/host/wayland_window_agl.cc | 86 +++++++++++++++++++
+ .../extensions/agl/host/wayland_window_agl.h | 49 +++++++++++
+ .../wayland/gpu/gl_surface_wayland.cc | 9 +-
+ .../host/gtk_primary_selection_device.cc | 2 +-
+ .../gtk_primary_selection_device_manager.cc | 4 +-
+ .../wayland/host/proxy/wayland_proxy_impl.cc | 2 +-
+ .../wayland/host/wayland_connection.cc | 19 +++-
+ .../wayland/host/wayland_connection.h | 9 +-
+ .../platform/wayland/host/wayland_cursor.cc | 4 +-
+ .../wayland/host/wayland_data_device.cc | 10 +--
+ .../wayland/host/wayland_data_device_base.cc | 2 +-
+ .../host/wayland_data_drag_controller.cc | 2 +-
+ .../wayland/host/wayland_data_source.cc | 6 +-
+ ui/ozone/platform/wayland/host/wayland_drm.cc | 6 +-
+ .../wayland/host/wayland_extensions.h | 6 ++
+ .../platform/wayland/host/wayland_keyboard.cc | 4 +-
+ .../platform/wayland/host/wayland_popup.cc | 8 +-
+ .../platform/wayland/host/wayland_seat.cc | 2 +-
+ ui/ozone/platform/wayland/host/wayland_shm.cc | 2 +-
+ .../platform/wayland/host/wayland_surface.cc | 2 +-
+ .../wayland/host/wayland_toplevel_window.cc | 18 ++--
+ .../platform/wayland/host/wayland_window.cc | 6 +-
+ .../platform/wayland/host/wayland_window.h | 2 +
+ .../host/wayland_window_drag_controller.cc | 2 +-
+ .../wayland/host/wayland_window_factory.cc | 14 +++
+ .../wayland/host/wayland_zwp_linux_dmabuf.cc | 4 +-
+ .../wayland/host/xdg_foreign_wrapper.cc | 4 +-
+ .../wayland/host/xdg_popup_wrapper_impl.cc | 2 +-
+ .../wayland/host/xdg_surface_wrapper_impl.cc | 2 +-
+ .../wayland/host/xdg_toplevel_wrapper_impl.cc | 2 +-
+ .../host/zwp_primary_selection_device.cc | 2 +-
+ .../zwp_primary_selection_device_manager.cc | 4 +-
+ ui/platform_window/agl/platform_window_agl.h | 36 ++++++++
+ ui/platform_window/platform_window.h | 4 +-
+ 46 files changed, 469 insertions(+), 63 deletions(-)
+ create mode 100644 ui/aura/agl/window_tree_host_agl.h
+ create mode 100644 ui/aura/agl/window_tree_host_platform_agl.cc
+ create mode 100644 ui/aura/agl/window_tree_host_platform_agl.h
+ create mode 100644 ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.cc
+ create mode 100644 ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.h
+ create mode 100644 ui/platform_window/agl/platform_window_agl.h
+
+diff --git a/ui/aura/BUILD.gn b/ui/aura/BUILD.gn
+index 50ca856b9da18..8fa04492f69f7 100644
+--- a/ui/aura/BUILD.gn
++++ b/ui/aura/BUILD.gn
+@@ -99,6 +99,13 @@ component("aura") {
+ "window_tree_host_platform.cc",
+ ]
+
++ public += [
++ "agl/window_tree_host_agl.h",
++ "agl/window_tree_host_platform_agl.h"
++ ]
++
++ sources += [ "agl/window_tree_host_platform_agl.cc" ]
++
+ friend = [ ":*" ]
+
+ defines = [ "AURA_IMPLEMENTATION" ]
+diff --git a/ui/aura/agl/window_tree_host_agl.h b/ui/aura/agl/window_tree_host_agl.h
+new file mode 100644
+index 0000000000000..858a078d939d0
+--- /dev/null
++++ b/ui/aura/agl/window_tree_host_agl.h
+@@ -0,0 +1,42 @@
++// Copyright 2021 LG Electronics, Inc.
++//
++// Licensed under the Apache License, Version 2.0 (the "License");
++// you may not use this file except in compliance with the License.
++// You may obtain a copy of the License at
++//
++// http://www.apache.org/licenses/LICENSE-2.0
++//
++// Unless required by applicable law or agreed to in writing, software
++// distributed under the License is distributed on an "AS IS" BASIS,
++// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
++// See the License for the specific language governing permissions and
++// limitations under the License.
++//
++// SPDX-License-Identifier: Apache-2.0
++
++#ifndef UI_AURA_AGL_WINDOW_TREE_HOST_AGL_H_
++#define UI_AURA_AGL_WINDOW_TREE_HOST_AGL_H_
++
++#include <string>
++
++#include "ui/aura/aura_export.h"
++
++namespace aura {
++
++class AURA_EXPORT WindowTreeHostAgl {
++ public:
++ WindowTreeHostAgl() = default;
++ WindowTreeHostAgl(const WindowTreeHostAgl&) = delete;
++ WindowTreeHostAgl& operator=(const WindowTreeHostAgl&) = delete;
++ ~WindowTreeHostAgl() = default;
++
++ virtual void SetAglActivateApp(const std::string& app) {}
++ virtual void SetAglAppId(const std::string& title) {}
++ virtual void SetAglReady() {}
++ virtual void SetAglBackground() {}
++ virtual void SetAglPanel(uint32_t edge) {}
++};
++
++} // namespace aura
++
++#endif // UI_AURA_AGL_WINDOW_TREE_HOST_AGL_H_
+diff --git a/ui/aura/agl/window_tree_host_platform_agl.cc b/ui/aura/agl/window_tree_host_platform_agl.cc
+new file mode 100644
+index 0000000000000..e34595fe0ed9c
+--- /dev/null
++++ b/ui/aura/agl/window_tree_host_platform_agl.cc
+@@ -0,0 +1,50 @@
++// Copyright 2021 LG Electronics, Inc.
++//
++// Licensed under the Apache License, Version 2.0 (the "License");
++// you may not use this file except in compliance with the License.
++// You may obtain a copy of the License at
++//
++// http://www.apache.org/licenses/LICENSE-2.0
++//
++// Unless required by applicable law or agreed to in writing, software
++// distributed under the License is distributed on an "AS IS" BASIS,
++// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
++// See the License for the specific language governing permissions and
++// limitations under the License.
++//
++// SPDX-License-Identifier: Apache-2.0
++
++#include "ui/aura/agl/window_tree_host_platform_agl.h"
++
++#include "ui/aura/window_tree_host_platform.h"
++#include "ui/platform_window/platform_window.h"
++
++namespace aura {
++
++WindowTreeHostPlatformAgl::WindowTreeHostPlatformAgl(
++ std::unique_ptr<Window> window,
++ aura::WindowTreeHostPlatform* window_tree_host_platform)
++ : aura::WindowTreeHost(std::move(window)),
++ window_tree_host_platform_(window_tree_host_platform) {}
++
++void WindowTreeHostPlatformAgl::SetAglActivateApp(const std::string& app) {
++ window_tree_host_platform_->platform_window()->SetAglActivateApp(app);
++}
++
++void WindowTreeHostPlatformAgl::SetAglAppId(const std::string& title) {
++ window_tree_host_platform_->platform_window()->SetAglAppId(title);
++}
++
++void WindowTreeHostPlatformAgl::SetAglReady() {
++ window_tree_host_platform_->platform_window()->SetAglReady();
++}
++
++void WindowTreeHostPlatformAgl::SetAglBackground() {
++ window_tree_host_platform_->platform_window()->SetAglBackground();
++}
++
++void WindowTreeHostPlatformAgl::SetAglPanel(uint32_t edge) {
++ window_tree_host_platform_->platform_window()->SetAglPanel(edge);
++}
++
++} // namespace aura
+diff --git a/ui/aura/agl/window_tree_host_platform_agl.h b/ui/aura/agl/window_tree_host_platform_agl.h
+new file mode 100644
+index 0000000000000..181eefae346f7
+--- /dev/null
++++ b/ui/aura/agl/window_tree_host_platform_agl.h
+@@ -0,0 +1,51 @@
++// Copyright 2021 LG Electronics, Inc.
++//
++// Licensed under the Apache License, Version 2.0 (the "License");
++// you may not use this file except in compliance with the License.
++// You may obtain a copy of the License at
++//
++// http://www.apache.org/licenses/LICENSE-2.0
++//
++// Unless required by applicable law or agreed to in writing, software
++// distributed under the License is distributed on an "AS IS" BASIS,
++// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
++// See the License for the specific language governing permissions and
++// limitations under the License.
++//
++// SPDX-License-Identifier: Apache-2.0
++
++#ifndef UI_AURA_AGL_WINDOW_TREE_HOST_PLATFORM_AGL_H_
++#define UI_AURA_AGL_WINDOW_TREE_HOST_PLATFORM_AGL_H_
++
++#include <memory>
++
++#include "ui/aura/aura_export.h"
++#include "ui/aura/window_tree_host.h"
++
++namespace aura {
++
++class Window;
++class WindowTreeHostPlatform;
++
++class AURA_EXPORT WindowTreeHostPlatformAgl : public aura::WindowTreeHost {
++ public:
++ explicit WindowTreeHostPlatformAgl(
++ std::unique_ptr<Window> window,
++ aura::WindowTreeHostPlatform* window_tree_host_platform);
++ WindowTreeHostPlatformAgl(const WindowTreeHostPlatformAgl&) = delete;
++ WindowTreeHostPlatformAgl& operator=(const WindowTreeHostPlatformAgl&) = delete;
++ ~WindowTreeHostPlatformAgl() override = default;
++
++ void SetAglActivateApp(const std::string& app) override;
++ void SetAglAppId(const std::string& title) override;
++ void SetAglReady() override;
++ void SetAglBackground() override;
++ void SetAglPanel(uint32_t edge) override;
++
++ private:
++ aura::WindowTreeHostPlatform* window_tree_host_platform_;
++};
++
++} // namespace aura
++
++#endif // UI_AURA_AGL_WINDOW_TREE_HOST_PLATFORM_AGL_H_
+diff --git a/ui/aura/window_tree_host.h b/ui/aura/window_tree_host.h
+index b4b6e7022ea34..afb37a3a3ed13 100644
+--- a/ui/aura/window_tree_host.h
++++ b/ui/aura/window_tree_host.h
+@@ -30,6 +30,8 @@
+ #include "ui/gfx/native_widget_types.h"
+ #include "ui/gfx/overlay_transform.h"
+
++#include "ui/aura/agl/window_tree_host_agl.h"
++
+ namespace gfx {
+ class Point;
+ class Rect;
+@@ -66,7 +68,8 @@ class WindowTreeHostObserver;
+ class AURA_EXPORT WindowTreeHost : public ui::ImeKeyEventDispatcher,
+ public ui::EventSource,
+ public display::DisplayObserver,
+- public ui::CompositorObserver {
++ public ui::CompositorObserver,
++ public WindowTreeHostAgl {
+ public:
+ // VideoCaptureLock ensures state necessary for capturing video remains in
+ // effect. For example, this may force keeping the compositor visible when
+diff --git a/ui/aura/window_tree_host_platform.cc b/ui/aura/window_tree_host_platform.cc
+index fd4a560f6cdd1..33b9e892c0212 100644
+--- a/ui/aura/window_tree_host_platform.cc
++++ b/ui/aura/window_tree_host_platform.cc
+@@ -52,7 +52,7 @@ std::unique_ptr<WindowTreeHost> WindowTreeHost::Create(
+ WindowTreeHostPlatform::WindowTreeHostPlatform(
+ ui::PlatformWindowInitProperties properties,
+ std::unique_ptr<Window> window)
+- : WindowTreeHost(std::move(window)) {
++ : WindowTreeHostPlatformAgl(std::move(window), this) {
+ size_in_pixels_ = properties.bounds.size();
+ CreateCompositor(false, false, properties.enable_compositing_based_throttling,
+ properties.compositor_memory_limit_mb);
+@@ -60,7 +60,7 @@ WindowTreeHostPlatform::WindowTreeHostPlatform(
+ }
+
+ WindowTreeHostPlatform::WindowTreeHostPlatform(std::unique_ptr<Window> window)
+- : WindowTreeHost(std::move(window)),
++ : WindowTreeHostPlatformAgl(std::move(window), this),
+ widget_(gfx::kNullAcceleratedWidget),
+ current_cursor_(ui::mojom::CursorType::kNull) {}
+
+diff --git a/ui/aura/window_tree_host_platform.h b/ui/aura/window_tree_host_platform.h
+index 92ae0f0229e70..9c3f742c30ad3 100644
+--- a/ui/aura/window_tree_host_platform.h
++++ b/ui/aura/window_tree_host_platform.h
+@@ -15,6 +15,8 @@
+ #include "ui/gfx/native_widget_types.h"
+ #include "ui/platform_window/platform_window_delegate.h"
+
++#include "ui/aura/agl/window_tree_host_platform_agl.h"
++
+ namespace ui {
+ enum class DomCode;
+ class PlatformWindow;
+@@ -26,7 +28,7 @@ namespace aura {
+
+ // The unified WindowTreeHost implementation for platforms
+ // that implement PlatformWindow.
+-class AURA_EXPORT WindowTreeHostPlatform : public WindowTreeHost,
++class AURA_EXPORT WindowTreeHostPlatform : public WindowTreeHostPlatformAgl,
+ public ui::PlatformWindowDelegate {
+ public:
+ explicit WindowTreeHostPlatform(ui::PlatformWindowInitProperties properties,
+diff --git a/ui/ozone/platform/wayland/BUILD.gn b/ui/ozone/platform/wayland/BUILD.gn
+index 8a436de0fafe3..754cb123043a9 100644
+--- a/ui/ozone/platform/wayland/BUILD.gn
++++ b/ui/ozone/platform/wayland/BUILD.gn
+@@ -400,7 +400,6 @@ source_set("wayland") {
+
+ sources += [
+ "host/wayland_extensions.h",
+- "host/wayland_extensions_stub.cc",
+ ]
+
+ deps += [ "extensions/agl" ]
+diff --git a/ui/ozone/platform/wayland/extensions/agl/BUILD.gn b/ui/ozone/platform/wayland/extensions/agl/BUILD.gn
+index ce289bc5dbbca..01c590e53df58 100644
+--- a/ui/ozone/platform/wayland/extensions/agl/BUILD.gn
++++ b/ui/ozone/platform/wayland/extensions/agl/BUILD.gn
+@@ -31,6 +31,8 @@ source_set("agl") {
+ "host/wayland_extensions_agl.h",
+ "host/wayland_extensions_agl_impl.cc",
+ "host/wayland_extensions_agl_impl.h",
++ "host/wayland_window_agl.cc",
++ "host/wayland_window_agl.h",
+ ]
+
+ deps = [
+diff --git a/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl.h b/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl.h
+index df42fc00c84da..295154dfb437d 100644
+--- a/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl.h
++++ b/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl.h
+@@ -20,6 +20,9 @@
+ namespace ui {
+
+ class AglShellWrapper;
++class PlatformWindowDelegate;
++class WaylandConnection;
++class WaylandWindow;
+
+ // AGL extensions implementation for webOS/Lite
+ class WaylandExtensionsAgl {
+@@ -29,9 +32,14 @@ class WaylandExtensionsAgl {
+ WaylandExtensionsAgl& operator=(const WaylandExtensionsAgl&) = delete;
+ virtual ~WaylandExtensionsAgl() = default;
+
++ virtual std::unique_ptr<WaylandWindow> CreateWaylandWindow(
++ PlatformWindowDelegate* delegate,
++ WaylandConnection* connection) = 0;
++
++
+ virtual AglShellWrapper* GetAglShell() = 0;
+ };
+
+ } // namespace ui
+
+-#endif // UI_OZONE_PLATFORM_WAYLAND_EXTENSIONS_AGL_HOST_WAYLAND_EXTENSIONS_AGL_H_
+\ No newline at end of file
++#endif // UI_OZONE_PLATFORM_WAYLAND_EXTENSIONS_AGL_HOST_WAYLAND_EXTENSIONS_AGL_H_
+diff --git a/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.cc b/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.cc
+index 26a5f0550c302..87376cbb8a9d3 100644
+--- a/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.cc
++++ b/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.cc
+@@ -22,6 +22,7 @@
+ #include "base/logging.h"
+ #include "ui/base/ui_base_switches.h"
+ #include "ui/ozone/platform/wayland/extensions/agl/host/agl_shell_wrapper.h"
++#include "ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.h"
+ #include "ui/ozone/platform/wayland/extensions/agl/common/wayland_object_agl.h"
+ #include "ui/ozone/platform/wayland/host/wayland_connection.h"
+
+@@ -68,8 +69,8 @@ bool WaylandExtensionsAglImpl::Bind(wl_registry* registry,
+ agl_shell_ =
+ std::make_unique<AglShellWrapper>(aglshell.release(), connection_);
+
+- LOG(INFO) << "Waiting until bound...";
+- return agl_shell_->WaitUntilBoundOk();
++ //LOG(INFO) << "Waiting until bound...";
++ //return agl_shell_->WaitUntilBoundOk();
+ } else {
+ LOG(INFO) << "Cant bind.";
+ }
+@@ -85,6 +86,12 @@ AglShellWrapper* WaylandExtensionsAglImpl::GetAglShell() {
+ return agl_shell_.get();
+ }
+
++std::unique_ptr<WaylandWindow> WaylandExtensionsAglImpl::CreateWaylandWindow(
++ PlatformWindowDelegate* delegate,
++ WaylandConnection* connection) {
++ return std::make_unique<WaylandWindowAgl>(delegate, connection, this);
++}
++
+ std::unique_ptr<WaylandExtensions> CreateWaylandExtensions(
+ WaylandConnection* connection) {
+ return std::make_unique<WaylandExtensionsAglImpl>(connection);
+diff --git a/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.h b/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.h
+index f6cbabe99ed0b..3218589f1a09a 100644
+--- a/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.h
++++ b/ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl_impl.h
+@@ -17,12 +17,17 @@
+ #ifndef UI_OZONE_PLATFORM_WAYLAND_EXTENSIONS_AGL_HOST_WAYLAND_EXTENSIONS_AGL_IMPL_H_
+ #define UI_OZONE_PLATFORM_WAYLAND_EXTENSIONS_AGL_HOST_WAYLAND_EXTENSIONS_AGL_IMPL_H_
+
++#include <memory>
++
+ #include "ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl.h"
+ #include "ui/ozone/platform/wayland/host/wayland_extensions.h"
+
+ namespace ui {
+
+ class AglShellWrapper;
++class PlatformWindowDelegate;
++class WaylandConnection;
++class WaylandWindow;
+
+ // AGL extension implementation for webOS/Lite
+ class WaylandExtensionsAglImpl : public WaylandExtensions,
+@@ -44,6 +49,10 @@ class WaylandExtensionsAglImpl : public WaylandExtensions,
+ // WaylandExtensionsAgl overrides
+ AglShellWrapper* GetAglShell() override;
+
++ std::unique_ptr<WaylandWindow> CreateWaylandWindow(
++ PlatformWindowDelegate* delegate,
++ WaylandConnection* connection) override;
++
+ private:
+ std::unique_ptr<AglShellWrapper> agl_shell_;
+ WaylandConnection* connection_;
+diff --git a/ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.cc b/ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.cc
+new file mode 100644
+index 0000000000000..97b21ae537658
+--- /dev/null
++++ b/ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.cc
+@@ -0,0 +1,86 @@
++// Copyright 2021 LG Electronics, Inc.
++//
++// Licensed under the Apache License, Version 2.0 (the "License");
++// you may not use this file except in compliance with the License.
++// You may obtain a copy of the License at
++//
++// http://www.apache.org/licenses/LICENSE-2.0
++//
++// Unless required by applicable law or agreed to in writing, software
++// distributed under the License is distributed on an "AS IS" BASIS,
++// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
++// See the License for the specific language governing permissions and
++// limitations under the License.
++//
++// SPDX-License-Identifier: Apache-2.0
++
++#include "ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.h"
++
++#include "base/logging.h"
++#include "ui/ozone/platform/wayland/extensions/agl/host/agl_shell_wrapper.h"
++#include "ui/ozone/platform/wayland/extensions/agl/host/wayland_extensions_agl.h"
++#include "ui/ozone/platform/wayland/host/shell_surface_wrapper.h"
++#include "ui/ozone/platform/wayland/host/shell_toplevel_wrapper.h"
++#include "ui/ozone/platform/wayland/host/wayland_connection.h"
++
++namespace ui {
++
++WaylandWindowAgl::WaylandWindowAgl(PlatformWindowDelegate* delegate,
++ WaylandConnection* connection,
++ WaylandExtensionsAgl* agl_extensions)
++ : WaylandToplevelWindow(delegate, connection),
++ agl_extensions_(agl_extensions) {}
++
++WaylandWindowAgl::~WaylandWindowAgl() = default;
++
++void WaylandWindowAgl::SetAglActivateApp(const std::string& app) {
++ if (!agl_extensions_->GetAglShell()) {
++ LOG(ERROR) << "Agl shell wrapper is not created";
++ return;
++ }
++
++ agl_extensions_->GetAglShell()->SetAglActivateApp(app);
++ connection()->ScheduleFlush();
++}
++
++void WaylandWindowAgl::SetAglAppId(const std::string& title) {
++ if (!shell_toplevel()) {
++ LOG(ERROR) << "Shell toplevel is not created";
++ return;
++ }
++
++ shell_toplevel()->SetAppId(title);
++ connection()->ScheduleFlush();
++}
++
++void WaylandWindowAgl::SetAglReady() {
++ if (!agl_extensions_->GetAglShell()) {
++ LOG(ERROR) << "Agl shell wrapper is not created";
++ return;
++ }
++
++ agl_extensions_->GetAglShell()->SetAglReady();
++ connection()->ScheduleFlush();
++}
++
++void WaylandWindowAgl::SetAglBackground() {
++ if (!agl_extensions_->GetAglShell()) {
++ LOG(ERROR) << "Agl shell wrapper is not created";
++ return;
++ }
++
++ agl_extensions_->GetAglShell()->SetAglBackground(this);
++ connection()->ScheduleFlush();
++}
++
++void WaylandWindowAgl::SetAglPanel(uint32_t edge) {
++ if (!agl_extensions_->GetAglShell()) {
++ LOG(ERROR) << "Agl shell wrapper is not created";
++ return;
++ }
++
++ agl_extensions_->GetAglShell()->SetAglPanel(this, edge);
++ connection()->ScheduleFlush();
++}
++
++} // namespace ui
+diff --git a/ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.h b/ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.h
+new file mode 100644
+index 0000000000000..b2a922604c001
+--- /dev/null
++++ b/ui/ozone/platform/wayland/extensions/agl/host/wayland_window_agl.h
+@@ -0,0 +1,49 @@
++// Copyright 2021 LG Electronics, Inc.
++//
++// Licensed under the Apache License, Version 2.0 (the "License");
++// you may not use this file except in compliance with the License.
++// You may obtain a copy of the License at
++//
++// http://www.apache.org/licenses/LICENSE-2.0
++//
++// Unless required by applicable law or agreed to in writing, software
++// distributed under the License is distributed on an "AS IS" BASIS,
++// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
++// See the License for the specific language governing permissions and
++// limitations under the License.
++//
++// SPDX-License-Identifier: Apache-2.0
++//
++
++#ifndef UI_OZONE_PLATFORM_WAYLAND_EXTENSIONS_AGL_HOST_WAYLAND_WINDOW_AGL_H_
++#define UI_OZONE_PLATFORM_WAYLAND_EXTENSIONS_AGL_HOST_WAYLAND_WINDOW_AGL_H_
++
++#include "ui/ozone/platform/wayland/host/wayland_toplevel_window.h"
++
++namespace ui {
++
++class WaylandExtensionsAgl;
++
++class WaylandWindowAgl : public WaylandToplevelWindow {
++ public:
++ explicit WaylandWindowAgl(PlatformWindowDelegate* delegate,
++ WaylandConnection* connection,
++ WaylandExtensionsAgl* agl_extensions);
++ WaylandWindowAgl(const WaylandWindowAgl&) = delete;
++ WaylandWindowAgl& operator=(const WaylandWindowAgl&) = delete;
++ ~WaylandWindowAgl() override;
++
++ // Overrides PlatformWindowAgl
++ void SetAglActivateApp(const std::string& app) override;
++ void SetAglAppId(const std::string& title) override;
++ void SetAglReady() override;
++ void SetAglBackground() override;
++ void SetAglPanel(uint32_t edge) override;
++
++ private:
++ WaylandExtensionsAgl* agl_extensions_;
++};
++
++} // namespace ui
++
++#endif // UI_OZONE_PLATFORM_WAYLAND_EXTENSIONS_AGL_HOST_WAYLAND_WINDOW_AGL_H_
+diff --git a/ui/ozone/platform/wayland/gpu/gl_surface_wayland.cc b/ui/ozone/platform/wayland/gpu/gl_surface_wayland.cc
+index 1cda8aa671ddb..220f759ff30a1 100644
+--- a/ui/ozone/platform/wayland/gpu/gl_surface_wayland.cc
++++ b/ui/ozone/platform/wayland/gpu/gl_surface_wayland.cc
+@@ -90,7 +90,14 @@ gfx::SwapResult GLSurfaceWayland::SwapBuffers(PresentationCallback callback,
+ return scoped_swap_buffers.result();
+ }
+ window_->root_surface()->set_surface_buffer_scale(scale_factor_);
+- return gl::NativeViewGLSurfaceEGL::SwapBuffers(std::move(callback), data);
++
++ gfx::SwapResult result = gl::NativeViewGLSurfaceEGL::SwapBuffers(std::move(callback), data);
++
++ if (window_) {
++ window_->OnSurfaceContentChanged();
++ }
++
++ return result;
+ }
+
+ gfx::SwapResult GLSurfaceWayland::PostSubBuffer(int x,
+diff --git a/ui/ozone/platform/wayland/host/gtk_primary_selection_device.cc b/ui/ozone/platform/wayland/host/gtk_primary_selection_device.cc
+index c62dd62be4fbf..2959593cfeb5b 100644
+--- a/ui/ozone/platform/wayland/host/gtk_primary_selection_device.cc
++++ b/ui/ozone/platform/wayland/host/gtk_primary_selection_device.cc
+@@ -32,7 +32,7 @@ void GtkPrimarySelectionDevice::SetSelectionSource(
+ auto* data_source = source ? source->data_source() : nullptr;
+ gtk_primary_selection_device_set_selection(data_device_.get(), data_source,
+ serial);
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ // static
+diff --git a/ui/ozone/platform/wayland/host/gtk_primary_selection_device_manager.cc b/ui/ozone/platform/wayland/host/gtk_primary_selection_device_manager.cc
+index 2c39409808128..1e07ae6009776 100644
+--- a/ui/ozone/platform/wayland/host/gtk_primary_selection_device_manager.cc
++++ b/ui/ozone/platform/wayland/host/gtk_primary_selection_device_manager.cc
+@@ -66,7 +66,7 @@ GtkPrimarySelectionDevice* GtkPrimarySelectionDeviceManager::GetDevice() {
+ connection_,
+ gtk_primary_selection_device_manager_get_device(
+ device_manager_.get(), connection_->seat()->wl_object()));
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+ DCHECK(device_);
+ return device_.get();
+@@ -77,7 +77,7 @@ GtkPrimarySelectionDeviceManager::CreateSource(
+ GtkPrimarySelectionSource::Delegate* delegate) {
+ auto* data_source =
+ gtk_primary_selection_device_manager_create_source(device_manager_.get());
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ return std::make_unique<GtkPrimarySelectionSource>(data_source, connection_,
+ delegate);
+ }
+diff --git a/ui/ozone/platform/wayland/host/proxy/wayland_proxy_impl.cc b/ui/ozone/platform/wayland/host/proxy/wayland_proxy_impl.cc
+index f2407d1c306ec..7a7868ded8a52 100644
+--- a/ui/ozone/platform/wayland/host/proxy/wayland_proxy_impl.cc
++++ b/ui/ozone/platform/wayland/host/proxy/wayland_proxy_impl.cc
+@@ -69,7 +69,7 @@ void WaylandProxyImpl::DestroyShmForWlBuffer(wl_buffer* buffer) {
+ }
+
+ void WaylandProxyImpl::FlushForTesting() {
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ ui::PlatformWindowType WaylandProxyImpl::GetWindowType(
+diff --git a/ui/ozone/platform/wayland/host/wayland_connection.cc b/ui/ozone/platform/wayland/host/wayland_connection.cc
+index 7a47d4a636998..8d9e8eea6fd79 100644
+--- a/ui/ozone/platform/wayland/host/wayland_connection.cc
++++ b/ui/ozone/platform/wayland/host/wayland_connection.cc
+@@ -264,6 +264,20 @@ bool WaylandConnection::Initialize(bool use_threaded_polling) {
+ return true;
+ }
+
++void WaylandConnection::ScheduleFlush() {
++ // When we are in tests, the message loop is set later when the
++ // initialization of the OzonePlatform complete. Thus, just
++ // flush directly. This doesn't happen in normal run.
++ if (!base::CurrentUIThread::IsSet()) {
++ Flush();
++ } else if (!scheduled_flush_) {
++ base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
++ FROM_HERE,
++ base::BindOnce(&WaylandConnection::Flush, base::Unretained(this)));
++ scheduled_flush_ = true;
++ }
++}
++
+ void WaylandConnection::RoundTripQueue() {
+ if (roundtrip_closure_for_testing_) {
+ roundtrip_closure_for_testing_.Run();
+@@ -333,6 +347,7 @@ void WaylandConnection::RegisterGlobalObjectFactory(
+
+ void WaylandConnection::Flush() {
+ wl_display_flush(display_.get());
++ scheduled_flush_ = false;
+ }
+
+ void WaylandConnection::UpdateInputDevices() {
+@@ -526,7 +541,7 @@ void WaylandConnection::OnPing(void* data,
+ uint32_t serial) {
+ auto* connection = static_cast<WaylandConnection*>(data);
+ xdg_wm_base_pong(shell, serial);
+- connection->Flush();
++ connection->ScheduleFlush();
+ }
+
+ // static
+@@ -707,7 +722,7 @@ void WaylandConnection::HandleGlobal(wl_registry* registry,
+ }
+
+ available_globals_.emplace_back(interface, version);
+- Flush();
++ ScheduleFlush();
+ }
+
+ } // namespace ui
+diff --git a/ui/ozone/platform/wayland/host/wayland_connection.h b/ui/ozone/platform/wayland/host/wayland_connection.h
+index ba293e5bcd088..641f36f13db35 100644
+--- a/ui/ozone/platform/wayland/host/wayland_connection.h
++++ b/ui/ozone/platform/wayland/host/wayland_connection.h
+@@ -100,8 +100,8 @@ class WaylandConnection {
+
+ bool Initialize(bool use_threaded_polling = false);
+
+- // Immediately flushes the Wayland display.
+- void Flush();
++ // Schedules a flush of the Wayland connection.
++ void ScheduleFlush();
+
+ // Calls wl_display_roundtrip_queue. Might be required during initialization
+ // of some objects that should block until they are initialized.
+@@ -388,6 +388,9 @@ class WaylandConnection {
+ friend class ZwpIdleInhibitManager;
+ friend class ZwpPrimarySelectionDeviceManager;
+
++ // Immediately flushes the Wayland display.
++ void Flush();
++
+ void RegisterGlobalObjectFactory(const char* interface_name,
+ wl::GlobalObjectFactory factory);
+
+@@ -535,6 +538,8 @@ class WaylandConnection {
+ // This is set if delegated composition should not be used.
+ bool overlay_delegation_disabled_ = false;
+
++ bool scheduled_flush_ = false;
++
+ wl::SerialTracker serial_tracker_;
+
+ // Global Wayland interfaces available in the current session, with their
+diff --git a/ui/ozone/platform/wayland/host/wayland_cursor.cc b/ui/ozone/platform/wayland/host/wayland_cursor.cc
+index 1b7d303291cff..a384212c84134 100644
+--- a/ui/ozone/platform/wayland/host/wayland_cursor.cc
++++ b/ui/ozone/platform/wayland/host/wayland_cursor.cc
+@@ -107,7 +107,7 @@ void WaylandCursor::HideCursor() {
+ wl_surface_attach(pointer_surface_.get(), nullptr, 0, 0);
+ wl_surface_commit(pointer_surface_.get());
+
+- connection_->Flush();
++ connection_->ScheduleFlush();
+
+ if (listener_)
+ listener_->OnCursorBufferAttached(nullptr);
+@@ -166,7 +166,7 @@ void WaylandCursor::AttachAndCommit(wl_buffer* buffer,
+ wl_pointer_set_cursor(pointer_->wl_object(), pointer_enter_serial->value,
+ pointer_surface_.get(), hotspot_x_dip, hotspot_y_dip);
+
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ } // namespace ui
+diff --git a/ui/ozone/platform/wayland/host/wayland_data_device.cc b/ui/ozone/platform/wayland/host/wayland_data_device.cc
+index a7adfd313188b..fe16d8577fd35 100644
+--- a/ui/ozone/platform/wayland/host/wayland_data_device.cc
++++ b/ui/ozone/platform/wayland/host/wayland_data_device.cc
+@@ -51,7 +51,7 @@ void WaylandDataDevice::StartDrag(const WaylandDataSource& data_source,
+ origin_window.root_surface()->surface(),
+ icon_surface, serial);
+ drag_delegate_->DrawIcon();
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ void WaylandDataDevice::ResetDragDelegate() {
+@@ -92,7 +92,7 @@ void WaylandDataDevice::SetSelectionSource(WaylandDataSource* source,
+ uint32_t serial) {
+ auto* data_source = source ? source->data_source() : nullptr;
+ wl_data_device_set_selection(data_device_.get(), data_source, serial);
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ void WaylandDataDevice::ReadDragDataFromFD(base::ScopedFD fd,
+@@ -146,7 +146,7 @@ void WaylandDataDevice::OnEnter(void* data,
+ gfx::PointF(wl_fixed_to_double(x), wl_fixed_to_double(y)), window);
+ self->drag_delegate_->OnDragEnter(window, point, serial);
+
+- self->connection()->Flush();
++ self->connection()->ScheduleFlush();
+ }
+
+ void WaylandDataDevice::OnMotion(void* data,
+@@ -167,7 +167,7 @@ void WaylandDataDevice::OnDrop(void* data, wl_data_device* data_device) {
+ auto* self = static_cast<WaylandDataDevice*>(data);
+ if (self->drag_delegate_) {
+ self->drag_delegate_->OnDragDrop();
+- self->connection()->Flush();
++ self->connection()->ScheduleFlush();
+ }
+
+ // There are buggy Exo versions, which send 'drop' event (even for
+@@ -184,7 +184,7 @@ void WaylandDataDevice::OnLeave(void* data, wl_data_device* data_device) {
+ auto* self = static_cast<WaylandDataDevice*>(data);
+ if (self->drag_delegate_) {
+ self->drag_delegate_->OnDragLeave();
+- self->connection()->Flush();
++ self->connection()->ScheduleFlush();
+ }
+ self->ResetDragDelegateIfNotDragSource();
+ }
+diff --git a/ui/ozone/platform/wayland/host/wayland_data_device_base.cc b/ui/ozone/platform/wayland/host/wayland_data_device_base.cc
+index 203e907f92bfa..a0c72971ac567 100644
+--- a/ui/ozone/platform/wayland/host/wayland_data_device_base.cc
++++ b/ui/ozone/platform/wayland/host/wayland_data_device_base.cc
+@@ -64,7 +64,7 @@ void WaylandDataDeviceBase::RegisterDeferredReadCallback() {
+ static constexpr wl_callback_listener kSyncCallbackListener = {
+ .done = &OnSyncDone};
+ wl_callback_add_listener(sync_callback_.get(), &kSyncCallbackListener, this);
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ void WaylandDataDeviceBase::RegisterDeferredReadClosure(
+diff --git a/ui/ozone/platform/wayland/host/wayland_data_drag_controller.cc b/ui/ozone/platform/wayland/host/wayland_data_drag_controller.cc
+index 705bdec41a1b7..dfa5789e8d149 100644
+--- a/ui/ozone/platform/wayland/host/wayland_data_drag_controller.cc
++++ b/ui/ozone/platform/wayland/host/wayland_data_drag_controller.cc
+@@ -256,7 +256,7 @@ void WaylandDataDragController::OnDragSurfaceFrame(void* data,
+ DCHECK(self);
+ self->DrawIconInternal();
+ self->icon_frame_callback_.reset();
+- self->connection_->Flush();
++ self->connection_->ScheduleFlush();
+ }
+
+ SkBitmap WaylandDataDragController::GetIconBitmap() {
+diff --git a/ui/ozone/platform/wayland/host/wayland_data_source.cc b/ui/ozone/platform/wayland/host/wayland_data_source.cc
+index c0e95c8a22e48..c294ffb8836aa 100644
+--- a/ui/ozone/platform/wayland/host/wayland_data_source.cc
++++ b/ui/ozone/platform/wayland/host/wayland_data_source.cc
+@@ -130,7 +130,7 @@ void DataSource<wl_data_source>::Offer(
+ const std::vector<std::string>& mime_types) {
+ for (auto& mime_type : mime_types)
+ wl_data_source_offer(data_source_.get(), mime_type.c_str());
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ template <typename T>
+@@ -165,7 +165,7 @@ void DataSource<gtk_primary_selection_source>::Offer(
+ const std::vector<std::string>& mime_types) {
+ for (const auto& mime_type : mime_types)
+ gtk_primary_selection_source_offer(data_source_.get(), mime_type.c_str());
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ template <>
+@@ -185,7 +185,7 @@ void DataSource<zwp_primary_selection_source_v1>::Offer(
+ for (const auto& mime_type : mime_types)
+ zwp_primary_selection_source_v1_offer(data_source_.get(),
+ mime_type.c_str());
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ template class DataSource<gtk_primary_selection_source>;
+diff --git a/ui/ozone/platform/wayland/host/wayland_drm.cc b/ui/ozone/platform/wayland/host/wayland_drm.cc
+index 68570a9aacb2c..2b3b16e8859cb 100644
+--- a/ui/ozone/platform/wayland/host/wayland_drm.cc
++++ b/ui/ozone/platform/wayland/host/wayland_drm.cc
+@@ -58,7 +58,7 @@ WaylandDrm::WaylandDrm(wl_drm* drm, WaylandConnection* connection)
+ .capabilities = &OnCapabilities,
+ };
+ wl_drm_add_listener(wl_drm_.get(), &kDrmListener, this);
+- connection_->Flush();
++ connection_->ScheduleFlush();
+
+ // A roundtrip after binding guarantees that the client has received all
+ // supported formats and capabilities of the device.
+@@ -92,7 +92,7 @@ void WaylandDrm::CreateBuffer(const base::ScopedFD& fd,
+ wl::Object<wl_buffer> buffer(wl_drm_create_prime_buffer(
+ wl_drm_.get(), fd.get(), size.width(), size.height(), format, offset[0],
+ stride[0], offset[1], stride[1], offset[2], stride[2]));
+- connection_->Flush();
++ connection_->ScheduleFlush();
+
+ std::move(callback).Run(std::move(buffer));
+ }
+@@ -146,7 +146,7 @@ void WaylandDrm::Authenticate(const char* drm_device_path) {
+ }
+
+ wl_drm_authenticate(wl_drm_.get(), magic);
+- connection_->Flush();
++ connection_->ScheduleFlush();
+
+ // Do the roundtrip to make sure the server processes this request and
+ // authenticates us.
+diff --git a/ui/ozone/platform/wayland/host/wayland_extensions.h b/ui/ozone/platform/wayland/host/wayland_extensions.h
+index 3bd2fd7a211ae..f6ed47507d217 100644
+--- a/ui/ozone/platform/wayland/host/wayland_extensions.h
++++ b/ui/ozone/platform/wayland/host/wayland_extensions.h
+@@ -25,7 +25,9 @@ namespace ui {
+
+ class ShellToplevelWrapper;
+ class ShellPopupWrapper;
++class PlatformWindowDelegate;
+ class WaylandConnection;
++class WaylandWindow;
+
+ // Wayland extensions abstract interface to support extending of the Wayland
+ // protocol. Inherit it to provide your own Wayland extensions implementation.
+@@ -45,6 +47,10 @@ class WaylandExtensions {
+
+ // Checks whether the extensions have bound shell object(s).
+ virtual bool HasShellObject() const = 0;
++
++ virtual std::unique_ptr<WaylandWindow> CreateWaylandWindow(
++ PlatformWindowDelegate* delegate,
++ WaylandConnection* connection) = 0;
+ };
+
+ // Creates Wayland extensions.
+diff --git a/ui/ozone/platform/wayland/host/wayland_keyboard.cc b/ui/ozone/platform/wayland/host/wayland_keyboard.cc
+index 2b7fc05d426e1..f24d6993b26ac 100644
+--- a/ui/ozone/platform/wayland/host/wayland_keyboard.cc
++++ b/ui/ozone/platform/wayland/host/wayland_keyboard.cc
+@@ -114,7 +114,7 @@ class WaylandKeyboard::ZCRExtendedKeyboard {
+
+ void AckKey(uint32_t serial, bool handled) {
+ zcr_extended_keyboard_v1_ack_key(obj_.get(), serial, handled);
+- keyboard_->connection_->Flush();
++ keyboard_->connection_->ScheduleFlush();
+ }
+
+ // Returns true if connected object will send zcr_extended_keyboard::peek_key.
+@@ -373,7 +373,7 @@ void WaylandKeyboard::FlushInput(base::OnceClosure closure) {
+ .done = &OnSyncDone,
+ };
+ wl_callback_add_listener(sync_callback_.get(), &kSyncCallbackListener, this);
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ void WaylandKeyboard::DispatchKey(unsigned int key,
+diff --git a/ui/ozone/platform/wayland/host/wayland_popup.cc b/ui/ozone/platform/wayland/host/wayland_popup.cc
+index f1e886f8675fb..28903c031e6ce 100644
+--- a/ui/ozone/platform/wayland/host/wayland_popup.cc
++++ b/ui/ozone/platform/wayland/host/wayland_popup.cc
+@@ -132,7 +132,7 @@ void WaylandPopup::Show(bool inactive) {
+ return;
+ }
+
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ WaylandWindow::Show(inactive);
+ }
+
+@@ -158,7 +158,7 @@ void WaylandPopup::Hide() {
+ decorated_via_aura_popup_ = false;
+ }
+
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ bool WaylandPopup::IsVisible() const {
+@@ -256,14 +256,14 @@ void WaylandPopup::ShowTooltip(const std::u16string& text,
+ if (zaura_surface &&
+ zaura_surface->ShowTooltip(text, position, zaura_shell_trigger,
+ show_delay, hide_delay)) {
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+ }
+
+ void WaylandPopup::HideTooltip() {
+ auto* zaura_surface = GetZAuraSurface();
+ if (zaura_surface && zaura_surface->HideTooltip()) {
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+ }
+
+diff --git a/ui/ozone/platform/wayland/host/wayland_seat.cc b/ui/ozone/platform/wayland/host/wayland_seat.cc
+index 3b05da49eb6b8..5f70725a9a9dd 100644
+--- a/ui/ozone/platform/wayland/host/wayland_seat.cc
++++ b/ui/ozone/platform/wayland/host/wayland_seat.cc
+@@ -128,7 +128,7 @@ void WaylandSeat::HandleCapabilities(void* data,
+
+ connection_->UpdateInputDevices();
+ connection_->UpdateCursor();
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ } // namespace ui
+diff --git a/ui/ozone/platform/wayland/host/wayland_shm.cc b/ui/ozone/platform/wayland/host/wayland_shm.cc
+index b264ad88962bb..95c19d9962085 100644
+--- a/ui/ozone/platform/wayland/host/wayland_shm.cc
++++ b/ui/ozone/platform/wayland/host/wayland_shm.cc
+@@ -62,7 +62,7 @@ wl::Object<wl_buffer> WaylandShm::CreateBuffer(const base::ScopedFD& fd,
+ with_alpha_channel ? WL_SHM_FORMAT_ARGB8888 : WL_SHM_FORMAT_XRGB8888;
+ wl::Object<wl_buffer> shm_buffer(wl_shm_pool_create_buffer(
+ pool.get(), 0, size.width(), size.height(), size.width() * 4, format));
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ return shm_buffer;
+ }
+
+diff --git a/ui/ozone/platform/wayland/host/wayland_surface.cc b/ui/ozone/platform/wayland/host/wayland_surface.cc
+index 47dc846390898..2a04d28b05484 100644
+--- a/ui/ozone/platform/wayland/host/wayland_surface.cc
++++ b/ui/ozone/platform/wayland/host/wayland_surface.cc
+@@ -305,7 +305,7 @@ void WaylandSurface::UpdateBufferDamageRegion(const gfx::Rect& damage_px) {
+ void WaylandSurface::Commit(bool flush) {
+ wl_surface_commit(surface_.get());
+ if (flush)
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ void WaylandSurface::set_surface_buffer_scale(float scale) {
+diff --git a/ui/ozone/platform/wayland/host/wayland_toplevel_window.cc b/ui/ozone/platform/wayland/host/wayland_toplevel_window.cc
+index 898113178a783..1b489b327fa29 100644
+--- a/ui/ozone/platform/wayland/host/wayland_toplevel_window.cc
++++ b/ui/ozone/platform/wayland/host/wayland_toplevel_window.cc
+@@ -127,7 +127,7 @@ void WaylandToplevelWindow::DispatchHostWindowDragMovement(
+ else
+ shell_toplevel_->SurfaceResize(connection(), hittest);
+
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ #if !BUILDFLAG(IS_CHROMEOS_LACROS)
+ // TODO(crbug.com/1454893): Revisit to resolve the correct impl.
+ connection()->event_source()->ResetPointerFlags();
+@@ -176,7 +176,7 @@ void WaylandToplevelWindow::Hide() {
+ gtk_surface1_.reset();
+
+ shell_toplevel_.reset();
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ bool WaylandToplevelWindow::IsVisible() const {
+@@ -193,7 +193,7 @@ void WaylandToplevelWindow::SetTitle(const std::u16string& title) {
+
+ if (shell_toplevel_) {
+ shell_toplevel_->SetTitle(title);
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+ }
+
+@@ -288,13 +288,13 @@ void WaylandToplevelWindow::Activate() {
+ // but nothing more happens (until the user moves the mouse over a Lacros
+ // window in which case events will start and the activation will come
+ // through).
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ void WaylandToplevelWindow::Deactivate() {
+ if (shell_toplevel_ && shell_toplevel_->SupportsActivation()) {
+ shell_toplevel_->Deactivate();
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+ }
+
+@@ -722,14 +722,14 @@ void WaylandToplevelWindow::ShowTooltip(
+ if (zaura_surface &&
+ zaura_surface->ShowTooltip(text, position, zaura_shell_trigger,
+ show_delay, hide_delay)) {
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+ }
+
+ void WaylandToplevelWindow::HideTooltip() {
+ auto* zaura_surface = GetZAuraSurface();
+ if (zaura_surface && zaura_surface->HideTooltip()) {
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+ }
+
+@@ -1001,7 +1001,7 @@ void WaylandToplevelWindow::TriggerStateChanges() {
+ }
+
+ delegate()->OnWindowStateChanged(previous_state_, state_);
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ void WaylandToplevelWindow::SetWindowState(PlatformWindowState state) {
+@@ -1035,7 +1035,7 @@ void WaylandToplevelWindow::SetSizeConstraints() {
+ shell_toplevel_->SetCanMaximize(delegate()->CanMaximize());
+ shell_toplevel_->SetCanFullscreen(delegate()->CanFullscreen());
+
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ void WaylandToplevelWindow::SetOrResetRestoredBounds() {
+diff --git a/ui/ozone/platform/wayland/host/wayland_window.cc b/ui/ozone/platform/wayland/host/wayland_window.cc
+index ad4366edfe4db..9a18c567bcbcc 100644
+--- a/ui/ozone/platform/wayland/host/wayland_window.cc
++++ b/ui/ozone/platform/wayland/host/wayland_window.cc
+@@ -686,6 +686,10 @@ std::string WaylandWindow::WindowStates::ToString() const {
+ return states;
+ }
+
++void WaylandWindow::OnSurfaceContentChanged() {
++ connection_->ScheduleFlush();
++}
++
+ void WaylandWindow::HandleToplevelConfigure(int32_t widht,
+ int32_t height,
+ const WindowStates& window_states) {
+@@ -832,7 +836,7 @@ bool WaylandWindow::Initialize(PlatformWindowInitProperties properties) {
+ root_surface_->EnableTrustedDamageIfPossible();
+ root_surface_->ApplyPendingState();
+
+- connection_->Flush();
++ connection_->ScheduleFlush();
+
+ return true;
+ }
+diff --git a/ui/ozone/platform/wayland/host/wayland_window.h b/ui/ozone/platform/wayland/host/wayland_window.h
+index d68d4d818f28f..2c5afbb3de99c 100644
+--- a/ui/ozone/platform/wayland/host/wayland_window.h
++++ b/ui/ozone/platform/wayland/host/wayland_window.h
+@@ -230,6 +230,8 @@ class WaylandWindow : public PlatformWindow,
+ // currently bound to.
+ virtual void HandleSurfaceConfigure(uint32_t serial);
+
++ void OnSurfaceContentChanged();
++
+ struct WindowStates {
+ bool is_maximized = false;
+ bool is_fullscreen = false;
+diff --git a/ui/ozone/platform/wayland/host/wayland_window_drag_controller.cc b/ui/ozone/platform/wayland/host/wayland_window_drag_controller.cc
+index e38565635a583..ff201c038efb7 100644
+--- a/ui/ozone/platform/wayland/host/wayland_window_drag_controller.cc
++++ b/ui/ozone/platform/wayland/host/wayland_window_drag_controller.cc
+@@ -91,7 +91,7 @@ class WaylandWindowDragController::ExtendedDragSource {
+ auto* surface = window ? window->root_surface()->surface() : nullptr;
+ zcr_extended_drag_source_v1_drag(source_.get(), surface, offset.x(),
+ offset.y());
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ private:
+diff --git a/ui/ozone/platform/wayland/host/wayland_window_factory.cc b/ui/ozone/platform/wayland/host/wayland_window_factory.cc
+index 6f66c6654819c..e2bc045e4b3fb 100644
+--- a/ui/ozone/platform/wayland/host/wayland_window_factory.cc
++++ b/ui/ozone/platform/wayland/host/wayland_window_factory.cc
+@@ -12,6 +12,8 @@
+ #include "ui/ozone/platform/wayland/host/wayland_window.h"
+ #include "ui/platform_window/platform_window_init_properties.h"
+
++#include "ui/ozone/platform/wayland/host/wayland_extensions.h"
++
+ namespace ui {
+
+ // static
+@@ -29,6 +31,12 @@ std::unique_ptr<WaylandWindow> WaylandWindow::Create(
+ // toplevel window instead.
+ if (auto* parent = connection->window_manager()->GetWindow(
+ properties.parent_widget)) {
++ if (connection->extensions()) {
++ window = connection->extensions()->CreateWaylandWindow(delegate,
++ connection);
++ if (window)
++ break;
++ }
+ window = std::make_unique<WaylandPopup>(delegate, connection, parent);
+ } else {
+ DLOG(WARNING) << "Failed to determine parent for menu/popup window.";
+@@ -40,6 +48,12 @@ std::unique_ptr<WaylandWindow> WaylandWindow::Create(
+ case PlatformWindowType::kDrag:
+ // TODO(crbug.com/1399419): Figure out what kind of surface we need to
+ // create for kBubble and kDrag windows.
++ if (connection->extensions()) {
++ window =
++ connection->extensions()->CreateWaylandWindow(delegate, connection);
++ if (window)
++ break;
++ }
+ window = std::make_unique<WaylandToplevelWindow>(delegate, connection);
+ break;
+ default:
+diff --git a/ui/ozone/platform/wayland/host/wayland_zwp_linux_dmabuf.cc b/ui/ozone/platform/wayland/host/wayland_zwp_linux_dmabuf.cc
+index 33935db68eadd..15f600ed7a126 100644
+--- a/ui/ozone/platform/wayland/host/wayland_zwp_linux_dmabuf.cc
++++ b/ui/ozone/platform/wayland/host/wayland_zwp_linux_dmabuf.cc
+@@ -104,7 +104,7 @@ void WaylandZwpLinuxDmabuf::CreateBuffer(const base::ScopedFD& fd,
+ // created buffer and notify the client about it via the |callback|.
+ pending_params_.emplace(std::move(params), std::move(callback));
+ }
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ bool WaylandZwpLinuxDmabuf::CanCreateBufferImmed() const {
+@@ -147,7 +147,7 @@ void WaylandZwpLinuxDmabuf::NotifyRequestCreateBufferDone(
+ DCHECK(it != pending_params_.end());
+ std::move(it->second).Run(wl::Object<wl_buffer>(new_buffer));
+ pending_params_.erase(it);
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ // static
+diff --git a/ui/ozone/platform/wayland/host/xdg_foreign_wrapper.cc b/ui/ozone/platform/wayland/host/xdg_foreign_wrapper.cc
+index 293c09a7e35f2..d36db127ec057 100644
+--- a/ui/ozone/platform/wayland/host/xdg_foreign_wrapper.cc
++++ b/ui/ozone/platform/wayland/host/xdg_foreign_wrapper.cc
+@@ -158,7 +158,7 @@ void XdgForeignWrapperImpl<zxdg_exporter_v1, zxdg_exported_v1>::
+ &kXdgExportedListener, this);
+
+ exported_surfaces_.emplace_back(std::move(exported_surface));
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ template <>
+@@ -174,7 +174,7 @@ void XdgForeignWrapperImpl<zxdg_exporter_v2, zxdg_exported_v2>::
+ &kXdgExportedListener, this);
+
+ exported_surfaces_.emplace_back(std::move(exported_surface));
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ // static
+diff --git a/ui/ozone/platform/wayland/host/xdg_popup_wrapper_impl.cc b/ui/ozone/platform/wayland/host/xdg_popup_wrapper_impl.cc
+index 64c8f2663ae60..b0d8f27aebbf9 100644
+--- a/ui/ozone/platform/wayland/host/xdg_popup_wrapper_impl.cc
++++ b/ui/ozone/platform/wayland/host/xdg_popup_wrapper_impl.cc
+@@ -239,7 +239,7 @@ bool XDGPopupWrapperImpl::SetBounds(const gfx::Rect& new_bounds) {
+ xdg_popup_reposition(xdg_popup_.get(), positioner.get(),
+ ++next_reposition_token_);
+
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ return true;
+ }
+
+diff --git a/ui/ozone/platform/wayland/host/xdg_surface_wrapper_impl.cc b/ui/ozone/platform/wayland/host/xdg_surface_wrapper_impl.cc
+index c4dd8c8e78ce4..67702ecc8fa4f 100644
+--- a/ui/ozone/platform/wayland/host/xdg_surface_wrapper_impl.cc
++++ b/ui/ozone/platform/wayland/host/xdg_surface_wrapper_impl.cc
+@@ -39,7 +39,7 @@ bool XDGSurfaceWrapperImpl::Initialize() {
+ };
+ xdg_surface_add_listener(xdg_surface_.get(), &kXdgSurfaceListener, this);
+
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ return true;
+ }
+
+diff --git a/ui/ozone/platform/wayland/host/xdg_toplevel_wrapper_impl.cc b/ui/ozone/platform/wayland/host/xdg_toplevel_wrapper_impl.cc
+index 0673c59185348..b9462c60a2eee 100644
+--- a/ui/ozone/platform/wayland/host/xdg_toplevel_wrapper_impl.cc
++++ b/ui/ozone/platform/wayland/host/xdg_toplevel_wrapper_impl.cc
+@@ -720,7 +720,7 @@ void XDGToplevelWrapperImpl::ShowSnapPreview(
+
+ void XDGToplevelWrapperImpl::AckRotateFocus(uint32_t serial, uint32_t handled) {
+ zaura_toplevel_ack_rotate_focus(aura_toplevel_.get(), serial, handled);
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+
+ XDGToplevelWrapperImpl* XDGToplevelWrapperImpl::AsXDGToplevelWrapper() {
+diff --git a/ui/ozone/platform/wayland/host/zwp_primary_selection_device.cc b/ui/ozone/platform/wayland/host/zwp_primary_selection_device.cc
+index 9057d1bea0116..97c1624e200ac 100644
+--- a/ui/ozone/platform/wayland/host/zwp_primary_selection_device.cc
++++ b/ui/ozone/platform/wayland/host/zwp_primary_selection_device.cc
+@@ -32,7 +32,7 @@ void ZwpPrimarySelectionDevice::SetSelectionSource(
+ auto* data_source = source ? source->data_source() : nullptr;
+ zwp_primary_selection_device_v1_set_selection(data_device_.get(), data_source,
+ serial);
+- connection()->Flush();
++ connection()->ScheduleFlush();
+ }
+
+ // static
+diff --git a/ui/ozone/platform/wayland/host/zwp_primary_selection_device_manager.cc b/ui/ozone/platform/wayland/host/zwp_primary_selection_device_manager.cc
+index 9d5d79635b66d..2ca82ce6031ba 100644
+--- a/ui/ozone/platform/wayland/host/zwp_primary_selection_device_manager.cc
++++ b/ui/ozone/platform/wayland/host/zwp_primary_selection_device_manager.cc
+@@ -66,7 +66,7 @@ ZwpPrimarySelectionDevice* ZwpPrimarySelectionDeviceManager::GetDevice() {
+ connection_,
+ zwp_primary_selection_device_manager_v1_get_device(
+ device_manager_.get(), connection_->seat()->wl_object()));
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ }
+ DCHECK(device_);
+ return device_.get();
+@@ -77,7 +77,7 @@ ZwpPrimarySelectionDeviceManager::CreateSource(
+ ZwpPrimarySelectionSource::Delegate* delegate) {
+ auto* data_source = zwp_primary_selection_device_manager_v1_create_source(
+ device_manager_.get());
+- connection_->Flush();
++ connection_->ScheduleFlush();
+ return std::make_unique<ZwpPrimarySelectionSource>(data_source, connection_,
+ delegate);
+ }
+diff --git a/ui/platform_window/agl/platform_window_agl.h b/ui/platform_window/agl/platform_window_agl.h
+new file mode 100644
+index 0000000000000..4bc915d663e72
+--- /dev/null
++++ b/ui/platform_window/agl/platform_window_agl.h
+@@ -0,0 +1,36 @@
++// Copyright 2021 LG Electronics, Inc.
++//
++// Licensed under the Apache License, Version 2.0 (the "License");
++// you may not use this file except in compliance with the License.
++// You may obtain a copy of the License at
++//
++// http://www.apache.org/licenses/LICENSE-2.0
++//
++// Unless required by applicable law or agreed to in writing, software
++// distributed under the License is distributed on an "AS IS" BASIS,
++// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
++// See the License for the specific language governing permissions and
++// limitations under the License.
++//
++// SPDX-License-Identifier: Apache-2.0
++
++#ifndef UI_PLATFORM_WINDOW_AGL_PLATFORM_WINDOW_AGL_H_
++#define UI_PLATFORM_WINDOW_AGL_PLATFORM_WINDOW_AGL_H_
++
++#include <string>
++
++namespace ui {
++
++// AGL additions for platform window.
++class PlatformWindowAgl {
++ public:
++ virtual void SetAglActivateApp(const std::string& app) {}
++ virtual void SetAglAppId(const std::string& title) {}
++ virtual void SetAglReady() {}
++ virtual void SetAglBackground() {}
++ virtual void SetAglPanel(uint32_t edge) {}
++};
++
++} // namespace ui
++
++#endif // UI_PLATFORM_WINDOW_AGL_PLATFORM_WINDOW_AGL_H_
+diff --git a/ui/platform_window/platform_window.h b/ui/platform_window/platform_window.h
+index 845da9467d6a4..a9b28388ec649 100644
+--- a/ui/platform_window/platform_window.h
++++ b/ui/platform_window/platform_window.h
+@@ -9,6 +9,7 @@
+ #include <string>
+ #include <vector>
+
++#include "agl/platform_window_agl.h"
+ #include "base/component_export.h"
+ #include "ui/base/class_property.h"
+ #include "ui/base/ui_base_types.h"
+@@ -32,7 +33,8 @@ class PlatformCursor;
+
+ // Generic PlatformWindow interface.
+ class COMPONENT_EXPORT(PLATFORM_WINDOW) PlatformWindow
+- : public PropertyHandler {
++ : public PropertyHandler,
++ public PlatformWindowAgl {
+ public:
+ PlatformWindow();
+ ~PlatformWindow() override;
+--
+2.42.1
+