Revert 176910 - Possible breakage of PlatformAppBrowserTest.Messaging

http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%28dbg%29%282%29/builds/25744/steps/browser_tests/logs/Messaging

> Add base class cr.ui.BubbleButton for options.ControlledSettingIndicator
> 
> This CL extracts a cr.ui.BubbleButton base class from the
> options.ControlledSettingIndicator so that it can be shared with the
> upcoming improved about:policy page.
> 
> BUG=134849
> TEST=Manual
> 
> 
> Review URL: https://chromiumcodereview.appspot.com/11864019

TBR=bartfab@chromium.org
Review URL: https://codereview.chromium.org/11882045

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@176924 0039d316-1c4b-4281-b951-d872f2087c98
6 files changed