ui: Remove TouchStatus in favour of EventResult.

ui/aura/event_filter.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_EVENT_FILTER_H_
 #define UI_AURA_EVENT_FILTER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/aura/aura_export.h"
@@ skipping 34 matching lines @@
   // For all PreHandle*() functions that return a bool, return true if the
   // filter consumes the event and further processing (by the target, for
   // example) is not performed. Return false if the filter does not consume the
   // event and further processing is performed. Note that in this case the
   // filter may still perform some action, the return value simply indicates
   // that further processing can occur.
 
   virtual bool PreHandleKeyEvent(Window* target, ui::KeyEvent* event);
   virtual bool PreHandleMouseEvent(Window* target, ui::MouseEvent* event);
 
-  // Returns a value other than ui::TOUCH_STATUS_UNKNOWN if the event is
+  // Returns a value other than ui::ER_UNHANDLED if the event is
   // consumed.
-  virtual ui::TouchStatus PreHandleTouchEvent(Window* target,
+  virtual ui::EventResult PreHandleTouchEvent(Window* target,
                                               ui::TouchEvent* event);
 
   // Returns a value other than ui::ER_UNHANDLED if the gesture is
   // consumed.
   virtual ui::EventResult PreHandleGestureEvent(Window* target,
                                                 ui::GestureEvent* event);
 
   // Overridden from ui::EventHandler.
   virtual ui::EventResult OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
   virtual ui::EventResult OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
   virtual ui::EventResult OnScrollEvent(ui::ScrollEvent* event) OVERRIDE;
   virtual ui::EventResult OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
   virtual ui::EventResult OnGestureEvent(ui::GestureEvent* e) OVERRIDE;
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_EVENT_FILTER_H_