ash: Rename LauncherModel to ShelfModel.

ash/launcher/launcher.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_LAUNCHER_LAUNCHER_H_
 #define ASH_LAUNCHER_LAUNCHER_H_
 
 #include "ash/ash_export.h"
 #include "ash/launcher/launcher_types.h"
 #include "ash/shelf/shelf_types.h"
@@ skipping 24 matching lines @@
 class FocusCycler;
 class ShelfLayoutManager;
 class ShelfView;
 }
 
 namespace test {
 class LauncherTestAPI;
 }
 
 class LauncherDelegate;
-class LauncherModel;
 class ShelfIconObserver;
+class ShelfModel;
 class ShelfWidget;
 
 class ASH_EXPORT Launcher {
  public:
   static const char kNativeViewName[];
 
-  Launcher(LauncherModel* launcher_model,
+  Launcher(ShelfModel* shelf_model,
            LauncherDelegate* launcher_delegate,
            ShelfWidget* shelf_widget);
   virtual ~Launcher();
 
   // Return the launcher for the primary display. NULL if no user is
   // logged in yet.
   static Launcher* ForPrimaryDisplay();
 
   // Return the launcher for the display that |window| is currently on,
   // or a launcher on primary display if the launcher per display feature
@@ skipping 61 matching lines @@
   LauncherDelegate* delegate_;
 
   ShelfWidget* shelf_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(Launcher);
 };
 
 }  // namespace ash
 
 #endif  // ASH_LAUNCHER_LAUNCHER_H_