fix segfault on task removal from list

This commit fixes a segfault which manifests while
processing a received message to update the list of
active processes. This segfault always happens on
removal of a process and sometimes an error
associated with the model size for the TableView is
also displayed on the journal.

The fix includes the following changes:
- add checks on the received ResponseMessage to
discard invalid messages;
- align with other libqtappfw-core clients which use
QJsonObject::value() returning QJsonValue, instead of
QJsonObject::operator[] returning QJsonValueRef;
- create local list of tasks using emplacement
instead of insertion;
- simplify matching & updating old tasklist against
new one; remove flag and use std algorithm find_if
with lambda.

Bug-AGL: SPEC-3402
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
Change-Id: Ic6bfaefed3fe91a8d29ef622ba7957b5bed5018a

0 files changed, 0 insertions, 0 deletions