Remove unused PumpOutPendingPaintMessages function

base/message_loop/message_pump_win.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 BASE_MESSAGE_LOOP_MESSAGE_PUMP_WIN_H_
 #define BASE_MESSAGE_LOOP_MESSAGE_PUMP_WIN_H_
 
 #include <windows.h>
 
 #include <list>
@@ skipping 151 matching lines @@
 
   // Sets a new MessageFilter. MessagePumpForUI takes ownership of
   // |message_filter|. When SetMessageFilter is called, old MessageFilter is
   // deleted.
   void SetMessageFilter(scoped_ptr<MessageFilter> message_filter);
 
   // MessagePump methods:
   virtual void ScheduleWork();
   virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time);
 
-  // Applications can call this to encourage us to process all pending WM_PAINT
-  // messages.  This method will process all paint messages the Windows Message
-  // queue can provide, up to some fixed number (to avoid any infinite loops).
-  void PumpOutPendingPaintMessages();
-
  private:
   static LRESULT CALLBACK WndProcThunk(HWND window_handle,
                                        UINT message,
                                        WPARAM wparam,
                                        LPARAM lparam);
   virtual void DoRunLoop();
   void InitMessageWnd();
   void WaitForWork();
   void HandleWorkMessage();
   void HandleTimerMessage();
@@ skipping 200 matching lines @@
   // This list will be empty almost always. It stores IO completions that have
   // not been delivered yet because somebody was doing cleanup.
   std::list<IOItem> completed_io_;
 
   ObserverList<IOObserver> io_observers_;
 };
 
 }  // namespace base
 
 #endif  // BASE_MESSAGE_LOOP_MESSAGE_PUMP_WIN_H_