[Cleanup] Remove mac code from aura/ash/views

ui/views/focus/accelerator_handler.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_VIEWS_FOCUS_ACCELERATOR_HANDLER_H_
 #define UI_VIEWS_FOCUS_ACCELERATOR_HANDLER_H_
 
 #include "build/build_config.h"
 
 #include <set>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/message_loop/message_loop.h"
 #include "ui/views/views_export.h"
 
 namespace views {
 
 #if defined(USE_AURA) && defined(USE_X11)
 // Dispatch an XEvent to the RootView. Return true if the event was dispatched
 // and handled, false otherwise.
 bool VIEWS_EXPORT DispatchXEvent(XEvent* xevent);
 #endif  // USE_AURA && USE_X11
 
 // This class delegates the key messages to the associated FocusManager class
 // for the window that is receiving these messages for accelerator processing.
-#if defined(OS_MACOSX)
-class VIEWS_EXPORT AcceleratorHandler {
-#else
 class VIEWS_EXPORT AcceleratorHandler : public base::MessageLoop::Dispatcher {
-#endif  // defined(OS_MACOSX)
  public:
   AcceleratorHandler();
 
   // Dispatcher method. This returns true if an accelerator was processed by the
   // focus manager
-#if defined(OS_WIN) || defined(USE_AURA)
   virtual bool Dispatch(const base::NativeEvent& event) OVERRIDE;
-#elif defined(OS_MACOSX)
-  // TODO(dhollowa): Implement on Mac.  http://crbug.com/109946
-#endif
 
  private:
 #if defined(OS_WIN)
   // The keys currently pressed and consumed by the FocusManager.
   std::set<WPARAM> pressed_keys_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(AcceleratorHandler);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_FOCUS_ACCELERATOR_HANDLER_H_