Adding hooks for gathering total pixels painted and rasterized stats.

cc/bitmap_canvas_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 "config.h"
 
 #include "cc/bitmap_canvas_layer_updater.h"
 
 #include "cc/layer_painter.h"
+#include "cc/rendering_stats.h"
 #include "cc/resource_update.h"
 #include "cc/texture_update_queue.h"
 #include "skia/ext/platform_canvas.h"
 
 namespace cc {
 
 BitmapCanvasLayerUpdater::Texture::Texture(BitmapCanvasLayerUpdater* updater, scoped_ptr<PrioritizedTexture> texture)
     : LayerUpdater::Texture(texture.Pass())
     , m_updater(updater)
 {
@@ skipping 28 matching lines @@
     return scoped_ptr<LayerUpdater::Texture>(new Texture(this, PrioritizedTexture::create(manager)));
 }
 
 void BitmapCanvasLayerUpdater::prepareToUpdate(const IntRect& contentRect, const IntSize& tileSize, float contentsWidthScale, float contentsHeightScale, IntRect& resultingOpaqueRect, RenderingStats& stats)
 {
     if (m_canvasSize != contentRect.size()) {
         m_canvasSize = contentRect.size();
         m_canvas = make_scoped_ptr(skia::CreateBitmapCanvas(m_canvasSize.width(), m_canvasSize.height(), m_opaque));
     }
 
+    stats.totalPixelsRasterized += contentRect.width() * contentRect.height();
+
     paintContents(m_canvas.get(), contentRect, contentsWidthScale, contentsHeightScale, resultingOpaqueRect, stats);
 }
 
 void BitmapCanvasLayerUpdater::updateTexture(TextureUpdateQueue& queue, PrioritizedTexture* texture, const IntRect& sourceRect, const IntSize& destOffset, bool partialUpdate)
 {
     ResourceUpdate upload = ResourceUpdate::Create(
         texture,
         &m_canvas->getDevice()->accessBitmap(false),
         contentRect(),
         sourceRect,
         destOffset);
     if (partialUpdate)
         queue.appendPartialUpload(upload);
     else
         queue.appendFullUpload(upload);
 }
 
 void BitmapCanvasLayerUpdater::setOpaque(bool opaque)
 {
     if (opaque != m_opaque) {
         m_canvas.reset();
         m_canvasSize = IntSize();
     }
     m_opaque = opaque;
 }
 
 } // namespace cc