Hardcode CLD version strings to avoid linking CLD to the browser

BUG=297777
TBR=jochen

Review URL: https://codereview.chromium.org/25654004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228478 0039d316-1c4b-4281-b951-d872f2087c98
Make accessibility audit run on settings pages and fix accessibility issues found by audit

BUG=265583

Review URL: https://codereview.chromium.org/26610005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228479 0039d316-1c4b-4281-b951-d872f2087c98
Fix ExtensionAppModelBuilder::SwitchProfile

BUG=306387
R=xiyuan@chromium.org

Review URL: https://codereview.chromium.org/27000010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228480 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228480