Remove GestureEvent interface, and rename GestureEventImpl to GestureEvent.

ui/views/widget/native_widget_aura.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 "ui/views/widget/native_widget_aura.h"
 
 #include "base/bind.h"
 #include "base/string_util.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/activation_change_observer.h"
@@ skipping 799 matching lines @@
   return delegate_->OnMouseEvent(mouse_event);
 }
 
 ui::TouchStatus NativeWidgetAura::OnTouchEvent(ui::TouchEvent* event) {
   DCHECK(window_->IsVisible());
   TouchEvent touch_event(event);
   return delegate_->OnTouchEvent(touch_event);
 }
 
 ui::GestureStatus NativeWidgetAura::OnGestureEvent(
-    ui::GestureEventImpl* event) {
+    ui::GestureEvent* event) {
   DCHECK(window_->IsVisible());
   GestureEvent gesture_event(event);
   return delegate_->OnGestureEvent(gesture_event);
 }
 
 bool NativeWidgetAura::CanFocus() {
   return can_activate_;
 }
 
 void NativeWidgetAura::OnCaptureLost() {
@@ skipping 216 matching lines @@
   return aura::Env::GetInstance()->is_mouse_button_down();
 }
 
 // static
 bool NativeWidgetPrivate::IsTouchDown() {
   return aura::Env::GetInstance()->is_touch_down();
 }
 
 }  // namespace internal
 }  // namespace views