Histograms - Support histograms for Plugins, GPU

chrome/renderer/page_load_histograms.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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 CHROME_RENDERER_PAGE_LOAD_HISTOGRAMS_H_
 #define CHROME_RENDERER_PAGE_LOAD_HISTOGRAMS_H_
 
 #include "base/basictypes.h"
 #include "content/public/renderer/render_view_observer.h"
 
 namespace content {
 class DocumentState;
 }
 
-class RendererHistogramSnapshots;
-
 class PageLoadHistograms : public content::RenderViewObserver {
  public:
-  PageLoadHistograms(content::RenderView* render_view,
-                     RendererHistogramSnapshots* histogram_snapshots);
+  explicit PageLoadHistograms(content::RenderView* render_view);
 
  private:
   // RenderViewObserver implementation.
   virtual void FrameWillClose(WebKit::WebFrame* frame) OVERRIDE;
   virtual void ClosePage() OVERRIDE;
 
   // Dump all page load histograms appropriate for the given frame.
   //
   // This method will only dump once-per-instance, so it is safe to call
   // multiple times.
@@ skipping 17 matching lines @@
   void ResetCrossFramePropertyAccess();
 
   void LogPageLoadTime(const content::DocumentState* load_times,
                        const WebKit::WebDataSource* ds) const;
 
   // Site isolation metric counts.
   // These are per-page-load counts, reset to 0 after they are dumped.
   int cross_origin_access_count_;
   int same_origin_access_count_;
 
-  RendererHistogramSnapshots* histogram_snapshots_;
-
   DISALLOW_COPY_AND_ASSIGN(PageLoadHistograms);
 };
 
 #endif  // CHROME_RENDERER_PAGE_LOAD_HISTOGRAMS_H_