Remove GestureEvent interface, and rename GestureEventImpl to GestureEvent.

ash/wm/app_list_controller.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/wm/app_list_controller.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
@@ skipping 235 matching lines @@
 }
 
 ui::TouchStatus AppListController::PreHandleTouchEvent(
     aura::Window* target,
     ui::TouchEvent* event) {
   return ui::TOUCH_STATUS_UNKNOWN;
 }
 
 ui::GestureStatus AppListController::PreHandleGestureEvent(
     aura::Window* target,
-    ui::GestureEventImpl* event) {
+    ui::GestureEvent* event) {
   if (event->type() == ui::ET_GESTURE_TAP)
     ProcessLocatedEvent(target, *event);
   return ui::GESTURE_STATUS_UNKNOWN;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // AppListController,  aura::FocusObserver implementation:
 void AppListController::OnWindowFocused(aura::Window* window) {
   if (view_ && is_visible_) {
     aura::Window* applist_container = Shell::GetContainer(
@@ skipping 40 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // AppListController, LauncherIconObserver implementation:
 
 void AppListController::OnLauncherIconPositionsChanged() {
   UpdateBounds();
 }
 
 }  // namespace internal
 }  // namespace ash