Remove GestureEvent interface, and rename GestureEventImpl to GestureEvent.

content/browser/web_contents/web_contents_view_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 "content/browser/web_contents/web_contents_view_aura.h"
 
 #include "base/utf_string_conversions.h"
 #include "content/browser/renderer_host/dip_util.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/web_contents/interstitial_page_impl.h"
@@ skipping 519 matching lines @@
       break;
   }
   return false;
 }
 
 ui::TouchStatus WebContentsViewAura::OnTouchEvent(ui::TouchEvent* event) {
   return ui::TOUCH_STATUS_UNKNOWN;
 }
 
 ui::GestureStatus WebContentsViewAura::OnGestureEvent(
-    ui::GestureEventImpl* event) {
+    ui::GestureEvent* event) {
   return ui::GESTURE_STATUS_UNKNOWN;
 }
 
 bool WebContentsViewAura::CanFocus() {
   // Do not take the focus if |view_| is gone because neither the view window
   // nor this window can handle key events.
   return view_ != NULL;
 }
 
 void WebContentsViewAura::OnCaptureLost() {
@@ skipping 82 matching lines @@
     OnDragEntered(event);
 
   web_contents_->GetRenderViewHost()->DragTargetDrop(
       event.location(),
       gfx::Screen::GetCursorScreenPoint(),
       ConvertAuraEventFlagsToWebInputEventModifiers(event.flags()));
   if (drag_dest_delegate_)
     drag_dest_delegate_->OnDrop();
   return current_drag_op_;
 }