Extract the code of showing a dragging window on another display from PhantomWindowController.
PhantomWindowController shows two styles of window, STYLE_SHADOW and STYLE_DRAGGING.
Although STYLE_SHADOW is specific to workspace, STYLE_DRAGGING is not specific to
workspace. This CL separates this feature into two classes so that the
STYLE_DRAGGING part can be used from non-workspace specific code
- Extract the STYLE_DRAGGING part from PhantomWindowController into DragWindowController.
- Move the ownership of the copied window layer from WorkspaceWindowResizer to
DragWindowController.
BUG=156519
Review URL: https://chromiumcodereview.appspot.com/
11280283
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@171048 0039d316-1c4b-4281-b951-d872f2087c98