[Tizen] Coding style cleanup

Header files includes have been alphabetically sorted.
Indentations and spaces have been corrected to meet coding style
and improve readability.

Change-Id: Ib7bebdee5625e127ce293ca84b426ae00e029ddc
[Runtime]  Make sure that the default url request getter has been initialized.

When launch a web application, if the default url request getter does not been
initialized, the runtime will crash, this patch will fix this bug.

BUG=XWALK-2890
[Tizen] Impementation of Tizen Web API verification during installation

This patch adds verification of version of Tizen Web API.

BUG=XWALK-2880
Merge pull request #2602 from sstolinski/sstolinski

[Tizen] Implementation of Tizen Web API verification during installation
Merge pull request #2591 from doduda/cleanup

[Tizen] Coding style cleanup
Bump version to 11.39.242.0
[Android] Fixed error that file not found in CrosswalkSample

The url of initial page in sample of onCreateWindowRequested is the
old one which already not present in the assets folder.

This error is caused by the following commit:
5edf99d333377ae6866860f36348d891652cf8ce
[Android] Add sample and test cases for Embedding API
Merge pull request #2603 from lincsoon/TestEmbeddingAPI

[Android] Fixed error that file not found in CrosswalkSample
[Android] Implement onShowCustomView with requested orientation.

This patch is to implement the onShowCustomView function with requested
orientation.

BUG=XWALK-1868
[Android] Add test case for onShow/HideCustomView.

This patch is to add test for OnShowCustomView and onHideCustomView.
Some code was ported from android webview.
[Android] Unexpected crash when run/debug xwalkdriver unit tests

Add code to check the conditions of empty App icon. Since the runtime::app_icon() will
return an empty icon for Android non-host-application.

BUG=https://crosswalk-project.org/jira/browse/XWALK-2914
Merge pull request #2605 from iKevinHan/XWALK-2914

[Android] Unexpected crash when run/debug xwalkdriver unit tests
Merge pull request #2594 from takethathe/xwalk_2890

[Runtime]  Make sure that the default url request getter has been initialized
gyp: Remove dependency on the views_test_support target.

This target brings in many additional dependencies on small static
libraries and should be used only by tests, as the name says. Instead,
depend on the event target, since we just need some symbols from it to
get the xwalk binary to link.

BUG=XWALK-2571
gyp: Stop using Chromium's bundled freetype2.

Remove the |use_custom_freetype| variable from xwalk.gyp and use the
system's Freetype instead.

The use_custom_freetype code came in from content_shell's gyp code when
we started the project. It is only used there for DumpRenderTree,
requires additional code to be built and is not used by the Chromium
browser at all.

BUG=XWALK-1985
BUG=XWALK-2571
gyp: Add dependency on snapshot.gyp:snapshot after 8bc6219.

Commit 8bc6219 ("[Tizen][Linux] Support getting thumbnail for devtools")
adds a call to ui::GrabViewSnapshotAsync but did not add a dependency on
the ui gyp target that contains the implementation of that function.

This broke the build of xwalk_browsertest on Linux when building with
component=shared_library:

  obj/xwalk/libxwalk_runtime.a(obj/xwalk/runtime/browser/devtools/xwalk_runtime.xwalk_devtools_delegate.o):xwalk_devtools_delegate.cc:function xwalk::XWalkDevToolsDelegate::GetPageThumbnailData(GURL const&):
  error: undefined reference to 'ui::GrabViewSnapshotAsync(aura::Window*, gfx::Rect const&, scoped_refptr<base::TaskRunner>, base::Callback<void (scoped_refptr<base::RefCountedBytes>)> const&)'

Fix it by adding the missing dependency.
[Tizen] packaging: Use the system's YASM instead of Chromium's.

This allows us to get rid of yet another bundled dependency that takes
time to build.

The YASM version shipped by Tizen (1.2.0) is the same one bundled in
Chromium, and the additional patches the latter has are of no relevance
to Tizen.

BUG=XWALK-1985
Bump version to 11.39.243.0
Merge pull request #2607 from rakuco/tizen-system-yasm

[Tizen] packaging: Use the system's YASM instead of Chromium's.
Merge pull request #2606 from rakuco/shared-library-build-fix

gyp: Add dependency on snapshot.gyp:snapshot after 8bc6219.