[Android] Fix the incorrect context usage for HttpAuthDataBase.

The database file should be in the app's data directory. However,
if using the context of runtime lib package, Android doesn't allow
to create it. Fix it by using the application context which is for
the runtime client side.

BUG=#1002
[Android] Disable flaky tests in xwalk_core_test

The responsiveness tests seem to be failed randomly on buildbot. It might be
caused by the unstable status on testing phone since this test relies on a
timeout to wait for unresponsiveness in 40 seconds. However, there is no way
to ensure it would happen in 40 seconds so that the test can be passed. Locally,
there 2 tests can be passed.
[Extensions] Adding Jesus to OWNERS
Merge pull request #1014 from cmarcelo/extensions-owners

[Extensions] Adding Jesus to OWNERS
Revert "[Extensions] Make RP synchronously ask for the extension channel handle"

This reverts commit fa7ae854e765bc01371162a1d51d17ee720dc12d.
It breaks page rendering for Android port.
Merge pull request #1008 from hmin/disable-flaky-test

[Android] Disable flaky tests in xwalk_core_test
Merge pull request #1005 from yongsheng/1002

[Android] Fix the incorrect context usage for HttpAuthDataBase.
Merge pull request #1016 from yongsheng/revert1010

Revert "[Extensions] Make RP synchronously ask for the extension channel...
Revert "[Android] Hotfix in Presentation API extension"

This reverts commit 29dff090299604bdd486ebc16accc9f88fed5421.
Revert "[WiDi API] First commit for Presentation API implementation on Android"

This reverts commit db2f123101fdab8eb1699783ef9f73dd22b683f6.
It breaks the unit tests of Android on buildbot. #1011 is for
it.
Merge pull request #1019 from yongsheng/revert577

Revert577
[Extensions] Add support for persistent callback listener

This is going to be the base of the EventTarget implementation. It is
important to remove the listener at some point otherwise the object will
leak.
MakeCreateJSModuleFromResourcePublic
fixup
[SysApps] Add the convenience classes and prototypes

These C++ classes and JavaScript prototypes are helpers for the common
places that appear all around the SysApps APIs specifications.

The main features are:

- Helpers for creating objects managed by the extension.
- Easy way of declaring API methods.
- EventTarget implementation, and thus, helpers for dealing with
  events.

For more information, check the documentation on the code.
native_module
fixup
[SysApps] Add unit tests for the convinience classes
[SysApps] Add browser tests for the common JavaScript API

These tests are testing the functionality of the helper JavaScript
prototypes and objects, like the EventTarget.
browsertest