Remove GestureEvent interface, and rename GestureEventImpl to GestureEvent.

ash/wm/app_list_controller.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_APP_LIST_CONTROLLER_H_
 #define ASH_WM_APP_LIST_CONTROLLER_H_
 
 #include "ash/launcher/launcher_icon_observer.h"
 #include "ash/shell_observer.h"
 #include "base/basictypes.h"
@@ skipping 65 matching lines @@
   // aura::EventFilter overrides:
   virtual bool PreHandleKeyEvent(aura::Window* target,
                                  ui::KeyEvent* event) OVERRIDE;
   virtual bool PreHandleMouseEvent(aura::Window* target,
                                    ui::MouseEvent* event) OVERRIDE;
   virtual ui::TouchStatus PreHandleTouchEvent(
       aura::Window* target,
       ui::TouchEvent* event) OVERRIDE;
   virtual ui::GestureStatus PreHandleGestureEvent(
       aura::Window* target,
-      ui::GestureEventImpl* event) OVERRIDE;
+      ui::GestureEvent* event) OVERRIDE;
 
   // aura::FocusChangeObserver overrides:
   virtual void OnWindowFocused(aura::Window* window) OVERRIDE;
 
   // aura::RootWindowObserver overrides:
   virtual void OnRootWindowResized(const aura::RootWindow* root,
                                    const gfx::Size& old_size) OVERRIDE;
 
   // ui::ImplicitAnimationObserver overrides:
   virtual void OnImplicitAnimationsCompleted() OVERRIDE;
@@ skipping 15 matching lines @@
   // The AppListView this class manages, owned by its widget.
   app_list::AppListView* view_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListController);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_APP_LIST_CONTROLLER_H_