Disable BrowserCloseManagerBrowserTest.TestBeforeUnloadAndDownloads.

BUG=315754
R=dgrogan@chromium.org
TBR=jhawkins@chromium.org

Review URL: https://codereview.chromium.org/62373003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233300 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233300
Add UMAs for video casting feature. 

Added UMAs for:
1) How many times the button is shown
2) How many times the button is selected
3) How many times the YouTube button is selected
4) How many times a video is fullscreened
5) How many times a play ends in success or error
6) The % of a video that the user watched remotely


BUG=284482
NOTRY=true

Review URL: https://codereview.chromium.org/55193003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233301 0039d316-1c4b-4281-b951-d872f2087c98
add 'switch to desktop' prompt for apps

TBR=cpu@chromium.org, wiltzius@chromium.org, kmess@chromium.org, kareng@chromium.org, tapted@chromium.org
BUG=314861

Review URL: https://codereview.chromium.org/62213004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233302 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233302