Clean up a few TODO items.

content/browser/renderer_host/render_widget_host_view_win.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 "content/browser/renderer_host/render_widget_host_view_win.h"
 
 #include <algorithm>
 #include <peninputpanel_i.c>
 
 #include "base/bind.h"
@@ skipping 906 matching lines @@
   if (size.IsEmpty())
     return false;
 
   if (!output->initialize(size.width(), size.height(), true))
     return false;
 
   return accelerated_surface_->CopyTo(
       size, output->getTopDevice()->accessBitmap(true).getPixels());
 }
 
-void RenderWidgetHostViewWin::UnhandledWheelEvent(
-    const WebKit::WebMouseWheelEvent& event) {
-}
-
 void RenderWidgetHostViewWin::ProcessTouchAck(
     WebKit::WebInputEvent::Type type, bool processed) {
   if (type == WebKit::WebInputEvent::TouchStart)
     UpdateDesiredTouchMode(processed);
 }
 
 void RenderWidgetHostViewWin::SetToGestureMode() {
   if (base::win::GetVersion() < base::win::VERSION_WIN7)
     return;
   UnregisterTouchWindow(m_hWnd);
@@ skipping 1737 matching lines @@
 void RenderWidgetHostViewWin::ResetPointerDownContext() {
   // If the default focus on the page is on an edit field and we did not
   // receive a focus change in the context of a pointer down message, it means
   // that the pointer down message occurred on the edit field and we should
   // display the on screen keyboard
   if (!received_focus_change_after_pointer_down_ && virtual_keyboard_)
     DisplayOnScreenKeyboardIfNeeded();
   received_focus_change_after_pointer_down_ = false;
   pointer_down_context_ = false;
 }