Stop checking for `tizen_mobile' in gyp wherever possible.

tizen_mobile has not been defined ever since we dropped support for
Tizen 2.x in 58841e7393074ea40e9a86bb55e8025256cf5af5, so the check has
been dead for a while.

Helps fix XWALK-1625.
Remove content_resource.pak from pak list.

The content_resources.pak only contains html/js/css files for chrome webui.
As the webui is not needed for xwalk, so just ignore it.
This can reduce size of xwalk.pak for about 150k

BUG=
[Android] Correct the usage of all_dependent_settings for core library

Previously, the all_dependent_settings is incorrectly used
in xwalk_core_library.gypi.
It's not used to include all the settings for some target's
dependencies. It's actually do settings for all the targets
depends on the one declares all_dependent_settings.

BUG=https://crosswalk-project.org/jira/browse/XWALK-1575
[Android] Fix the compile warning in XWalkPreferences.java.

The warning is "uses unchecked or unsafe operations". It's because
of the missed type specifier and type cast.
Merge pull request #1901 from rakuco/tizen_mobile-cleanup

Stop checking for `tizen_mobile' in gyp wherever possible.
Merge pull request #1924 from yongsheng/fixwarning

[Android] Fix the compile warning in XWalkPreferences.java.
DEPS.xwalk: Roll ozone-wayland (f4faec5 -> 55f39c6).

55f39c6 wayland.gyp: Use pkg-config-wrapper from the right location.

BUG=https://crosswalk-project.org/jira/browse/XWALK-1673
Merge pull request #1939 from rakuco/oz-wl-roll

DEPS.xwalk: Roll ozone-wayland (f4faec5 -> 55f39c6).
Bump version to 7.35.136.0
[Android] Reordered the declaration of WebContents and WebContentsDelegate in XWalkContent

It will cause crash when destroy XWalkContent, caused by destruction order.

The WebContentsDelegate need to take ownership of WebContents
as chrome content design. For crosswalk, XWalkContent owns these two,
Currently as a workaround, reorder the declaration to make sure the
WebContents destructed before WebContentsDelegate.

BUG=XWALK-1639
To remove one redundant conditional statement

Function "CleanDir" will check if dir exists.
Merge pull request #1943 from PeterWangIntel/redundant_conditional_statement

To remove one redundant conditional statement
[Runtime] Fix the crash due to the sanity check

Miss the sanity check of the ApplicaionData used in
ApplicationProtocolHandler::MaybeCreateJob().

BUG=XWALK-1677
Yet another win build fix due to recent commit.

Modify application::kCookieDatabaseFilename to be a
base::FilePath::CharType directly.
Merge pull request #1940 from darktears/win-build-fix

Yet another win build fix due to recent commit.
Bump version to 7.35.137.0
Merge pull request #1926 from wang16/fix_core_library

[Android] Correct the usage of all_dependent_settings for core library
Merge pull request #1942 from kurli/fix-exit-crash

[Android] Reordered the declaration of WebContents and WebContentsDelegate in XWalkContent
Merge pull request #1903 from sqliu/remove-content-pak

Remove content_resource.pak from pak list.
Merge pull request #1944 from xingnan/1677

[Runtime] Fix the crash due to the sanity check