Remove DidCommitCompositorFrame from RenderViewObserver.

content/renderer/render_view_impl.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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 3487 matching lines @@
 }
 
 void RenderViewImpl::OnReleaseDisambiguationPopupBitmap(
     const cc::SharedBitmapId& id) {
   BitmapMap::iterator it = disambiguation_bitmaps_.find(id);
   DCHECK(it != disambiguation_bitmaps_.end());
   delete it->second;
   disambiguation_bitmaps_.erase(it);
 }
 
-void RenderViewImpl::DidCommitCompositorFrame() {
-  RenderWidget::DidCommitCompositorFrame();
-  FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidCommitCompositorFrame());
-}
-
 void RenderViewImpl::SendUpdateFaviconURL(const std::vector<FaviconURL>& urls) {
   if (!urls.empty())
     Send(new ViewHostMsg_UpdateFaviconURL(routing_id(), urls));
 }
 
 void RenderViewImpl::DidStopLoadingIcons() {
   int icon_types = WebIconURL::TypeFavicon | WebIconURL::TypeTouchPrecomposed |
       WebIconURL::TypeTouch;
 
   // Favicons matter only for the top-level frame. If it is a WebRemoteFrame,
@@ skipping 22 matching lines @@
   if (IsUseZoomForDSFEnabled()) {
     webview()->setZoomFactorForDeviceScaleFactor(device_scale_factor_);
   } else {
     webview()->setDeviceScaleFactor(device_scale_factor_);
   }
   webview()->settings()->setPreferCompositingToLCDTextEnabled(
       PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));
 }
 
 }  // namespace content