events: Get rid of GestureStatus in favour of EventResult.

ui/aura/window_delegate.h

 // 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.
 
 #ifndef UI_AURA_WINDOW_DELEGATE_H_
 #define UI_AURA_WINDOW_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "ui/aura/aura_export.h"
 #include "ui/base/events.h"
@@ skipping 44 matching lines @@
   // Returns true if event handling should descend into |child|. |location| is
   // in terms of the Window.
   virtual bool ShouldDescendIntoChildForEventHandling(
       Window* child,
       const gfx::Point& location) = 0;
 
   virtual bool OnMouseEvent(ui::MouseEvent* event) = 0;
 
   virtual ui::TouchStatus OnTouchEvent(ui::TouchEvent* event) = 0;
 
-  virtual ui::GestureStatus OnGestureEvent(ui::GestureEvent* event) = 0;
+  virtual ui::EventResult OnGestureEvent(ui::GestureEvent* event) = 0;
 
   // Returns true of the window can be focused.
   virtual bool CanFocus() = 0;
 
   // Invoked when mouse capture is lost on the window.
   virtual void OnCaptureLost() = 0;
 
   // Asks the delegate to paint window contents into the supplied canvas.
   virtual void OnPaint(gfx::Canvas* canvas) = 0;
 
@@ skipping 37 matching lines @@
                                         ui::ScrollEvent* event) OVERRIDE;
   virtual ui::TouchStatus OnTouchEvent(ui::EventTarget* target,
                                        ui::TouchEvent* event) OVERRIDE;
   virtual ui::EventResult OnGestureEvent(ui::EventTarget* target,
                                          ui::GestureEvent* event) OVERRIDE;
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_DELEGATE_H_