Eliminate View::UILayoutIsRightToLeft() to standardize on base::i18n::IsRTL().  Was only needed for EnableUIMirroringForRTLLanguages(), which was only used by Views::Label, which already had this capability via set_rtl_alignment_mode().

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/1991002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46869 0039d316-1c4b-4281-b951-d872f2087c98
41 files changed