ash: Rename LauncherModel to ShelfModel.

ash/shell/window_watcher.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_SHELL_WINDOW_WATCHER_H_
 #define ASH_SHELL_WINDOW_WATCHER_H_
 
 #include <map>
 
 #include "ash/launcher/launcher_types.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/window_observer.h"
 #include "ui/gfx/display_observer.h"
 
 namespace aura {
 class Window;
 }
 
 namespace ash {
 namespace shell {
 
 // TODO(sky): fix this class, its a bit broke with workspace2.
 
 // WindowWatcher is responsible for listening for newly created windows and
-// creating items on the Launcher for them.
+// creating items on the Shelf for them.
 class WindowWatcher : public aura::WindowObserver,
                       public gfx::DisplayObserver {
  public:
   WindowWatcher();
   virtual ~WindowWatcher();
 
   aura::Window* GetWindowByID(ash::LauncherID id);
   ash::LauncherID GetIDByWindow(aura::Window* window) const;
 
   // aura::WindowObserver overrides:
@@ skipping 15 matching lines @@
 
   scoped_ptr<WorkspaceWindowWatcher> workspace_window_watcher_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowWatcher);
 };
 
 }  // namespace shell
 }  // namespace ash
 
 #endif  // ASH_SHELL_WINDOW_WATCHER_H_