cc: Add PictureRecordBenchmark.

This patch adds a PictureRecordBenchmark:

- For all of the picture layers it does the following:
 - Run cc::Picture record for a variety of rects with different areas
   and different positions.
 - Accumulate the numbers and report average per area record times.

R=enne@chromium.org,nduca@chromium.org

Review URL: https://codereview.chromium.org/26609002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228336 0039d316-1c4b-4281-b951-d872f2087c98
Add autoclick feature to ChromeOS accessibility manager.

BUG=272401
TEST=updated browser_test

Review URL: https://codereview.chromium.org/26895004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228337 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228337
Hide validation bubble when Autofill popup shows (so they're not both showing
simultaneously).

BUG=306197
R=estade@chromium.org,groby@chromium.org

Review URL: https://codereview.chromium.org/26901005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228338 0039d316-1c4b-4281-b951-d872f2087c98
Update cros_system_api

BUG=304977
TEST=manually, by updating .DEPS.git

Review URL: https://codereview.chromium.org/26911003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228339 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228339