Shuffles and renames ash/common/wm classes

ash/common/wm/workspace/phantom_window_controller.h

Index: ash/common/wm/workspace/phantom_window_controller.h
diff --git a/ash/common/wm/workspace/phantom_window_controller.h b/ash/common/wm/workspace/phantom_window_controller.h
index 1970e868db074f6f55b3b3ae828d8a36ce106e47..6ac7da2bcc98bccf6b7803471cd6117617940998 100644
--- a/ash/common/wm/workspace/phantom_window_controller.h
+++ b/ash/common/wm/workspace/phantom_window_controller.h
@@ -16,16 +16,15 @@ class Widget;
 }
 
 namespace ash {
-namespace wm {
+
 class WmWindow;
-}
 
 // PhantomWindowController is responsible for showing a phantom representation
 // of a window. It's used to show a preview of how snapping or docking a window
 // will affect the window's bounds.
 class ASH_EXPORT PhantomWindowController {
  public:
-  explicit PhantomWindowController(wm::WmWindow* window);
+  explicit PhantomWindowController(WmWindow* window);
 
   // Hides the phantom window without any animation.
   ~PhantomWindowController();
@@ -37,11 +36,11 @@ class ASH_EXPORT PhantomWindowController {
   // Creates, shows and returns a phantom widget at |bounds|
   // with kShellWindowId_ShelfContainer in |root_window| as a parent.
   std::unique_ptr<views::Widget> CreatePhantomWidget(
-      wm::WmWindow* root_window,
+      WmWindow* root_window,
       const gfx::Rect& bounds_in_screen);
 
   // Window that the phantom window is stacked above.
-  wm::WmWindow* window_;
+  WmWindow* window_;
 
   // Target bounds (including the shadows if any) of the animation in screen
   // coordinates.