Fix Sunspider performance regression

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/bind.h"
@@ skipping 2722 matching lines @@
 
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FrameDetached(frame));
 }
 
 void RenderViewImpl::willClose(WebFrame* frame) {
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FrameWillClose(frame));
 }
 
 void RenderViewImpl::didChangeName(WebFrame* frame,
                                    const WebString& name)  {
+  if (!renderer_preferences_.report_frame_name_changes)
+    return;
+
   Send(new ViewHostMsg_UpdateFrameName(routing_id_,
                                        frame->identifier(),
                                        !frame->parent(),
                                        UTF16ToUTF8(name)));
 }
 
 void RenderViewImpl::loadURLExternally(
     WebFrame* frame, const WebURLRequest& request,
     WebNavigationPolicy policy) {
   loadURLExternally(frame, request, policy, WebString());
@@ skipping 3800 matching lines @@
 }
 #endif
 
 void RenderViewImpl::OnReleaseDisambiguationPopupDIB(
     TransportDIB::Handle dib_handle) {
   TransportDIB* dib = TransportDIB::CreateWithHandle(dib_handle);
   RenderProcess::current()->ReleaseTransportDIB(dib);
 }
 
 }  // namespace content