Shuffles and renames ash/common/wm classes

ash/wm/maximize_mode/workspace_backdrop_delegate.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_WM_MAXIMIZE_MODE_WORKSPACE_BACKDROP_DELEGATE_H_
 #define ASH_WM_MAXIMIZE_MODE_WORKSPACE_BACKDROP_DELEGATE_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
@@ skipping 14 matching lines @@
 // A background which gets created for a container |window| and which gets
 // stacked behind the topmost window (within that container) covering the
 // entire container.
 class ASH_EXPORT WorkspaceBackdropDelegate
     : public WorkspaceLayoutManagerBackdropDelegate {
  public:
   explicit WorkspaceBackdropDelegate(aura::Window* container);
   ~WorkspaceBackdropDelegate() override;
 
   // WorkspaceLayoutManagerBackdropDelegate overrides:
-  void OnWindowAddedToLayout(wm::WmWindow* child) override;
-  void OnWindowRemovedFromLayout(wm::WmWindow* child) override;
-  void OnChildWindowVisibilityChanged(wm::WmWindow* child,
-                                      bool visible) override;
-  void OnWindowStackingChanged(wm::WmWindow* window) override;
+  void OnWindowAddedToLayout(WmWindow* child) override;
+  void OnWindowRemovedFromLayout(WmWindow* child) override;
+  void OnChildWindowVisibilityChanged(WmWindow* child, bool visible) override;
+  void OnWindowStackingChanged(WmWindow* window) override;
   void OnPostWindowStateTypeChange(wm::WindowState* window_state,
                                    wm::WindowStateType old_type) override;
   void OnDisplayWorkAreaInsetsChanged() override;
 
  private:
   class WindowObserverImpl;
 
   // Restack the backdrop relatively to the other windows in the container.
   void RestackBackdrop();
 
@@ skipping 16 matching lines @@
 
   // If true, the |RestackOrHideWindow| might recurse.
   bool in_restacking_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkspaceBackdropDelegate);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_MAXIMIZE_MODE_WORKSPACE_BACKDROP_DELEGATE_H_