Aura: Don't create GL context for GetSharedSurfaceHandle()

BUG=329737
NOTRY=True

Review URL: https://codereview.chromium.org/148243011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249564 0039d316-1c4b-4281-b951-d872f2087c98
Rebaseline pixel test because of changes to android screenshot.

BUG=341686
R=kbr@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/157133002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249565 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249565