rAc: fix tooltip bubble flickering issue when bubble opens under mouse cursor
(which causes the bubble to hide, which causes the bubble to open, etc.)

BUG=316966
R=sky@chromium.org

Review URL: https://codereview.chromium.org/66723015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235032 0039d316-1c4b-4281-b951-d872f2087c98
Remove the flag --enable-translate-new-ux

Since the crashes caused by the bubble are reported many times, I'll remove the flag from the list of about:flags once.

This CL is intended to be landed on M32 (beta).

BUG=318355
TEST=manual
TBR=sky@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/69863004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235033 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235032
SVN changes up to revision 235033