Roll chromium-crosswalk to 8baebce.

8baebce [SysApps] Add MEDIA_EXPORT to fix linking errors in the component build
Merge pull request #1419 from nagineni/deps_xwalk

Roll chromium-crosswalk to 8baebce.
Bump version to 4.32.61.0
Merge branch 'master' of github.com-crosswalk:crosswalk-project/crosswalk
[Android] Clean term AwContent in IO thread Client and remove AwURLRequestJobFactory in cookie_manager.h.

  In io thread client related header files, the AwContents comments should be refined
and in the cookie manager header file, unused code of AwURLRequestJobFactory should be removed.
This fix is to resolve these issues.

BUG=https://crosswalk-project.org/jira/browse/XWALK-768
[Android] Refactor the xwalk settings.

  The native layer of xwalk settings interfaces of updating everything
should grab lock, the constructor should directly initialize the base
class not to involve the member of base class. The unused codes in java
 layer of xwalk settings should be removed and the ui thread should be
handled correctly. This fix is to refactor the xwalk settings to resovle
these issues.

BUG=https://crosswalk-project.org/jira/browse/XWALK-767
Merge pull request #1406 from ShDavidliu/refine

[Android] Clean term AwContent in IO thread Client and remove AwURLRequestJobFactory in cookie_manager.h.
Merge pull request #1405 from ShDavidliu/refactor_settings

[Android] Refactor the xwalk settings.
Mac build fix

Fix compiler errors about missing "virtual" and "OVERRIDE" on overloaded
methods.
Merge pull request #1422 from tmpsantos/mac-buildfix

Mac build fix
Bump version to 4.32.62.0
[SysApps][Android] Add permission to app template for Contact API

BUG=https://crosswalk-project.org/jira/browse/XWALK-778
Merge pull request #1424 from deqing/add_permission

[SysApps][Android] Add permission to app template for Contacts API
Application extensions support multiple applications

Application extensions are now provided with corresponding Application instances.
The corresponding application instance is found by Render Process Host (RPH) associated with it
(There's one-to-one correspondence between Application and RPH, obtained from its "runtimes").

RPH id getter is added to Application class. ApplicationService can lookup an application by the RPH id.
The rest of changes in the Application class (and all changes in Runtime class) are caused by the necessity for the application
to be aware of the associated RPH id before its first "Runtime" loads anything.