Remove GestureEvent interface, and rename GestureEventImpl to GestureEvent.

ash/wm/workspace/frame_maximize_button.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/workspace/frame_maximize_button.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/wm/property_util.h"
@@ skipping 34 matching lines @@
   // EventFilter overrides:
   virtual bool PreHandleKeyEvent(aura::Window* target,
                                  ui::KeyEvent* event) OVERRIDE;
   virtual bool PreHandleMouseEvent(aura::Window* target,
                                    ui::MouseEvent* event) OVERRIDE;
   virtual ui::TouchStatus PreHandleTouchEvent(
       aura::Window* target,
       ui::TouchEvent* event) OVERRIDE;
   virtual ui::GestureStatus PreHandleGestureEvent(
       aura::Window* target,
-      ui::GestureEventImpl* event) OVERRIDE;
+      ui::GestureEvent* event) OVERRIDE;
 
  private:
   FrameMaximizeButton* button_;
 
   DISALLOW_COPY_AND_ASSIGN(EscapeEventFilter);
 };
 
 FrameMaximizeButton::EscapeEventFilter::EscapeEventFilter(
     FrameMaximizeButton* button)
     : button_(button) {
@@ skipping 21 matching lines @@
 }
 
 ui::TouchStatus FrameMaximizeButton::EscapeEventFilter::PreHandleTouchEvent(
     aura::Window* target,
     ui::TouchEvent* event) {
   return ui::TOUCH_STATUS_UNKNOWN;
 }
 
 ui::GestureStatus FrameMaximizeButton::EscapeEventFilter::PreHandleGestureEvent(
     aura::Window* target,
-    ui::GestureEventImpl* event) {
+    ui::GestureEvent* event) {
   return ui::GESTURE_STATUS_UNKNOWN;
 }
 
 // FrameMaximizeButton ---------------------------------------------------------
 
 FrameMaximizeButton::FrameMaximizeButton(views::ButtonListener* listener,
                                          views::NonClientFrameView* frame)
     : ImageButton(listener),
       frame_(frame),
       is_snap_enabled_(false),
@@ skipping 382 matching lines @@
       break;
     case SNAP_RESTORE:
       frame_->GetWidget()->Restore();
       break;
     case SNAP_NONE:
       NOTREACHED();
   }
 }
 
 }  // namespace ash