Remove TouchEvent interface, and rename TouchEventImpl to TouchEvent

ui/aura/event_filter.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 UI_AURA_EVENT_FILTER_H_
 #define UI_AURA_EVENT_FILTER_H_
 
 #include "base/basictypes.h"
 #include "ui/aura/aura_export.h"
 #include "ui/base/events.h"
 
 namespace ui {
 class GestureEventImpl;
 class KeyEvent;
 class MouseEvent;
-class TouchEventImpl;
+class TouchEvent;
 }
 
 namespace aura {
 
 class Window;
 
 // An object that filters events sent to an owner window. The filter can stop
 // further processing of events.
 //
 // When the Desktop receives an event, it determines the "target window" for
@@ skipping 19 matching lines @@
   // event and further processing is performed. Note that in this case the
   // filter may still perform some action, the return value simply indicates
   // that further processing can occur.
 
   virtual bool PreHandleKeyEvent(Window* target, ui::KeyEvent* event) = 0;
   virtual bool PreHandleMouseEvent(Window* target, ui::MouseEvent* event) = 0;
 
   // Returns a value other than ui::TOUCH_STATUS_UNKNOWN if the event is
   // consumed.
   virtual ui::TouchStatus PreHandleTouchEvent(Window* target,
-                                              ui::TouchEventImpl* event) = 0;
+                                              ui::TouchEvent* event) = 0;
 
   // Returns a value other than ui::GESTURE_STATUS_UNKNOWN if the gesture is
   // consumed.
   virtual ui::GestureStatus PreHandleGestureEvent(
       Window* target,
       ui::GestureEventImpl* event) = 0;
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_EVENT_FILTER_H_