Moves fields only accessed from content::DocumentState to content::InternalDocumentStateData.

chrome/renderer/page_load_histograms.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 "chrome/renderer/page_load_histograms.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/time.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/renderer/chrome_content_renderer_client.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/renderer/document_state.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "extensions/common/url_pattern.h"
 #include "googleurl/src/gurl.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebURLRequest.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebURLResponse.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPerformance.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
 using WebKit::WebDataSource;
 using WebKit::WebFrame;
 using WebKit::WebPerformance;
 using WebKit::WebString;
@@ skipping 841 matching lines @@
 
   DCHECK(document_state);
   DCHECK(ds);
   GURL url(ds->request().url());
   Time start = document_state->start_load_time();
   Time finish = document_state->finish_load_time();
   // TODO(mbelshe): should we log more stats?
   VLOG(1) << "PLT: " << (finish - start).InMilliseconds() << "ms "
           << url.spec();
 }