[Tizen] [multi-users] remove setuid root in xwalk-pkg-helper

xwalk-pkg-helper is always run by root user. It needs to be launched
by a user in order to retrieve User ID in application framework
and then install/remove applications in user's places.

related to XWALK-1649

Signed-off-by: Corentin Lecouvey <corentin.lecouvey@open.eurogiciel.org>
[Tizen] Further implementation of Blink-based orientation code

The ApplicationTizen class is now inherited from 'content::ScreenOrientationProvider'
since both Application and ScreenOrientationDispatcherHost correspond to a single
renderer process.
Also ScreenOrientationProvider initialization code is added to ApplicationTizen::Launch
method.
Remove application events related code from application storage

SSIA. This code is not used since we dropped Main document support.
[Android] Retain the application name with space on device.

This patch is to retain the application name with space.
Create a class, it contains the attributes of application, set the
value according to the content of manifest or command line.
It also contains the original name and replaced name.
Rewrite the label value in AndroidManifest.xml with original name.
[Runtime] Return a "NOT FOUND" message if the resource is invalid when using application scheme.

When using application scheme (app://), if loading a resource which does
not belong to an application, if should return the error message
directly, this patch will do this if the application can not found.

BUG=XWALK-1762
Merge pull request #2024 from pozdnyakov/Make_App_ScreenOrientationProvider

[Tizen] Further implementation of Blink-based orientation code
Merge pull request #2008 from eurogiciel-oss/XWALK-1649

[Tizen] [multi-users] remove setuid root in xwalk-pkg-helper
Merge pull request #2030 from pozdnyakov/remove_events_from_accounts_db

Remove application events related code from application storage
Merge pull request #2036 from wuhengzhi/app_name_on_device

[Android] Retain the application name with space on device.
[Android] Decouple url loading and onReadyToRender callback

The url loading should not depend on the readiness of compositing
surface. Otherwise, it will cause 'deadlock' between loading url and
surface availability in some cases.

For example, to support splash screen in cordova, the XWalkView should
be initially invisible and waits for a signal from web page to become
visible. However, Android framework may not create the underlying Surface
for an invisibile View, which causes the url won't be loaded.

BUG=https://crosswalk-project.org/jira/browse/XWALK-1884
[Tizen][Runtime] Add simple error page for net error.

After we have support allow-navigation on tizen, QA will test
for this. But if we do not have a net error page, QA might can
not identify whether some issues caused by crosswalk or other
net errors.
Preliminary work before manifest `csp` member implementation

This patch re-organizes the existing WARP and CSP code
so that it is accessible not only for Tizen and encapsulated
within SecurityPolicy classes family.
[Android] Native File System API
Completed features list:

Create file
Read file
Write file
Remove file
Create Directory
List Directory Entries
Remove Directory

BUG=https://crosswalk-project.org/jira/browse/XWALK-672
DEPS.xwalk: Roll v8-crosswalk (c4640c3->535cd00)
Merge pull request #2059 from dp7/master

DEPS.xwalk: Roll v8-crosswalk (c4640c3->535cd00)
Merge pull request #2046 from pozdnyakov/Recompose_security_policy_code

Preliminary work before manifest `csp` member implementation
Bump version to 7.36.153.0
Merge branch 'master' of github.com-crosswalk:crosswalk-project/crosswalk
Merge pull request #2048 from shawngao5/native_file_system_android

[Android] Native File System API
Revert accidental change of kCSPKey value.

SSIA, the change had happened at PR #2046.