Adding hooks for gathering total pixels painted and rasterized stats.

cc/bitmap_skpicture_canvas_layer_texture_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 "config.h"
 
 #include "BitmapSkPictureCanvasLayerTextureUpdater.h"
 
 #include "CCRenderingStats.h"
@@ skipping 57 matching lines @@
 }
 
 void BitmapSkPictureCanvasLayerTextureUpdater::paintContentsRect(SkCanvas* canvas, const IntRect& sourceRect, CCRenderingStats& stats)
 {
     // Translate the origin of contentRect to that of sourceRect.
     canvas->translate(contentRect().x() - sourceRect.x(),
                       contentRect().y() - sourceRect.y());
     double rasterizeBeginTime = monotonicallyIncreasingTime();
     drawPicture(canvas);
     stats.totalRasterizeTimeInSeconds += monotonicallyIncreasingTime() - rasterizeBeginTime;
+    stats.totalPixelsRasterized += sourceRect.width() * sourceRect.height();
 }
 
 } // namespace cc