Adapt user check to multi user architecture.

BUG:https://crosswalk-project.org/jira/browse/XWALK-1649

Change-Id: I2e38c4582e7b0bf1a024ffdad22d1bd14056bb11
Signed-off-by: Baptiste DURAND <baptiste.durand@open.eurogiciel.org>
Merge pull request #1912 from eurogiciel-oss/XWALK-1649

Adapt user check to multi user architecture.
Move to Chromium 35.0.1916.114.

No big changes were needed in our side since this is just a more recent
version in the same milestone.

Besides the usual changes to DEPS.xwalk, the following ones had to be
made:

[Tizen] Replace crosswalk-no-fatal-ld-warnings.patch with a gyp flag.

Since r262389 (r262093 in trunk) it is possible to disable fatal
warnings with a build system flag.

Do that instead of patching the code.

CL: https://codereview.chromium.org/228003008

---

[Tizen] packaging: Stop installing libmojo_system.so.

Since r262728 (r260629) in trunk the build system respects the value of
the |component| gyp variable and produces a static library if it is not
set to "shared_library", just all other libraries.

CL: https://codereview.chromium.org/231293002

Roll Chromium to 35.0.1916.114.

---

[Android] Fix the build after Chromium r267872.

This backported commit in Chromium changes the signature of
ContentVideoViewClient::onShowCustomView(), so update our implementation
accordingly.

CL: https://codereview.chromium.org/266003002
Merge pull request #1962 from rakuco/cr-35.0.1916.114

Move to Chromium 35.0.1916.114.
[Runtime] Add dir and span support for widget

We can get right value for text items which have dir
propertie or span element in it.

This festure according to
http://www.w3.org/TR/widgets/#the-dir-attribute
http://www.w3.org/TR/widgets/#the-span-element-and-its-attributes