Move a window if the sceren bounds being set is in other display.

- Fix StackingController::GetDefaultParent so that it uses
 the same root window as its transient parent.
- Updated WorkspaceWindowResizer to move the dragged window to other display if the new destination matches it. This is short term, temporary solution until better drag&drop is implemented.

BUG=123160
TEST=ExtendedDesktopTest.MoveWindow/MoveWindowWithTransient


Review URL: https://chromiumcodereview.appspot.com/10795027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@147798 0039d316-1c4b-4281-b951-d872f2087c98
10 files changed