Make ToplevelWindowEventFilter and WorkspaceEventFilter into event handlers.

ash/wm/workspace/workspace2.h

 // Copyright (c) 2012 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_WORKSPACE_WORKSPACE2_H_
 #define ASH_WM_WORKSPACE_WORKSPACE2_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 
 namespace aura {
 class Window;
 }
 
 namespace gfx {
 class Rect;
 }
 
 namespace ash {
 namespace internal {
 
-class WorkspaceEventFilter;
+class WorkspaceEventHandler;
 class WorkspaceManager2;
 
 // Workspace is used to maintain either a single maximized windows (including
 // transients and other windows) or any number of windows (for the
 // desktop). Workspace is used by WorkspaceManager to manage a set of windows.
 class ASH_EXPORT Workspace2 {
  public:
   Workspace2(WorkspaceManager2* manager,
              aura::Window* parent,
              bool is_maximized);
@@ skipping 19 matching lines @@
  private:
   // Is this a workspace for maximized windows?
   const bool is_maximized_;
 
   WorkspaceManager2* workspace_manager_;
 
   // Our Window, owned by |parent| passed to the constructor.
   aura::Window* window_;
 
   // Owned by |window_|.
-  WorkspaceEventFilter* event_filter_;
+  WorkspaceEventHandler* event_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(Workspace2);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WORKSPACE_WORKSPACE2_H_