cc: Add best_record_time to rendering stats.

cc/resources/skpicture_content_layer_updater.cc

 // Copyright 2011 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 "cc/resources/skpicture_content_layer_updater.h"
 
 #include "base/debug/trace_event.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/resources/layer_painter.h"
 #include "cc/resources/prioritized_resource.h"
@@ skipping 21 matching lines @@
   base::TimeTicks start_time =
       rendering_stats_instrumentation_->StartRecording();
   PaintContents(canvas,
                 content_rect,
                 contents_width_scale,
                 contents_height_scale,
                 resulting_opaque_rect);
   base::TimeDelta duration =
       rendering_stats_instrumentation_->EndRecording(start_time);
   rendering_stats_instrumentation_->AddRecord(
-      duration, content_rect.width() * content_rect.height());
+      duration, duration, content_rect.width() * content_rect.height());
   picture_.endRecording();
 }
 
 void SkPictureContentLayerUpdater::DrawPicture(SkCanvas* canvas) {
   TRACE_EVENT0("cc", "SkPictureContentLayerUpdater::DrawPicture");
   canvas->drawPicture(picture_);
 }
 
 }  // namespace cc