[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
[Runtime] Add CSP supporting for Crosswalk scheme

The CSP control will be enabled in packaged application by adding the
CSP content into the Crosswalk scheme response header.

The CSP policy is coming from "content_security_policy" field in
manifest.json, so web application developer could configure it as they
want.

https://crosswalk-project.org/jira/browse/XWALK-630
[Runtime] Disable the default CSP policy

Remove the default CSP policy: script-src 'self'; object-src 'self',
since it will block many tests and applications.
[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.
Merge pull request #1417 from takethathe/csp_protocol

[Runtime] Add CSP supporting for Crosswalk scheme
Merge pull request #1415 from pozdnyakov/Extensions_support_multi_apps

Application extensions support multiple applications
Disable NoCSP unit test

Disable NoCSP unit test as the default CSP policy settings in CSP manifest handler
were removed (since they had affected some tests and legacy apps).
The test shall be enabled again when we have default CSP settings back.
Merge pull request #1427 from pozdnyakov/Disable_NoCSP

Disable NoCSP unit test
[Tizen] Add overlay mode to TopViewLayout

In overlay mode the top_view_ will be over the content_view_.
[Tizen] Add WatcherClient interface and use it on the indicator
[Tizen] Add WidgetHolder and TizenSystemIndicatorWidget

The system indicator is implemented as a widget because it needs to
receive events and may also be an overlay on top of the rest of the
content, regular views do not support this. We add it to the holder,
that is a view that doesn't draw anything, just passes the bounds
information to the topview layout.