Remove TouchEvent interface, and rename TouchEventImpl to TouchEvent

ash/system/tray/tray_bubble_view.cc

 // 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.
 
 #include "ash/system/tray/tray_bubble_view.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/wm/shelf_layout_manager.h"
@@ skipping 451 matching lines @@
 
 bool TrayBubbleView::Host::PreHandleMouseEvent(aura::Window* target,
                                                ui::MouseEvent* event) {
   if (event->type() == ui::ET_MOUSE_PRESSED)
     ProcessLocatedEvent(*event);
   return false;
 }
 
 ui::TouchStatus TrayBubbleView::Host::PreHandleTouchEvent(
     aura::Window* target,
-    ui::TouchEventImpl* event) {
+    ui::TouchEvent* event) {
   if (event->type() == ui::ET_TOUCH_PRESSED)
     ProcessLocatedEvent(*event);
   return ui::TOUCH_STATUS_UNKNOWN;
 }
 
 ui::GestureStatus TrayBubbleView::Host::PreHandleGestureEvent(
     aura::Window* target,
     ui::GestureEventImpl* event) {
   return ui::GESTURE_STATUS_UNKNOWN;
 }
@@ skipping 13 matching lines @@
       return;
   }
   // Handle clicking outside the bubble and tray. We don't block the event, so
   // it will also be handled by whatever widget was clicked on.
   OnClickedOutsideView();
 }
 
 
 }  // namespace internal
 }  // namespace ash