Make about:omnibox Display |allowed_to_be_default_match|

This is helpful for debugging reorder mode and oddities with keyword and
extension matches.

BUG=319886

Review URL: https://codereview.chromium.org/74173003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235699 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235699
Implement SyncEngine::UpdateRegisteredApps()

Test=Automated. Added SyncEngineTest.UpdateRegisteredApps
BUG=240165

Review URL: https://codereview.chromium.org/62883005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235700 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235700
[rAc OSX] Restore arrow for top notification.

I got a little overzealous in deleting code in this file earlier...

BUG=319158
TEST=Top notification should have arrow (see bug)
R=groby@chromium.org

Review URL: https://codereview.chromium.org/72533002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235701 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235701
<webview>: Give tabIndex -1 so that tab order is not affected

BUG=231664

Review URL: https://codereview.chromium.org/72843002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235702 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235702