MTP Streaming: Linux streaming infrastructure changes.

BUG=110119

Review URL: https://codereview.chromium.org/107833003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246996 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 246996
Fix crash when accidentally touching the screen during a multi window resize

BUG=330672
TEST=WidgetTest.WidgetDeleted_InOnMouseCaptureLost
     *DetachToBrowserTabDragControllerTest.*

Review URL: https://codereview.chromium.org/122153002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246997 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 246997