cc: Avoid expensive RenderingStats collection.

cc/layer_tree_host_unittest.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/layer_tree_host.h"
 
 #include "base/synchronization/lock.h"
 #include "cc/content_layer.h"
 #include "cc/content_layer_client.h"
 #include "cc/frame_rate_controller.h"
@@ skipping 777 matching lines @@
     Layer* m_testLayer;
 };
 
 class ContentLayerWithUpdateTracking : public ContentLayer {
 public:
     static scoped_refptr<ContentLayerWithUpdateTracking> create(ContentLayerClient* client) { return make_scoped_refptr(new ContentLayerWithUpdateTracking(client)); }
 
     int paintContentsCount() { return m_paintContentsCount; }
     void resetPaintContentsCount() { m_paintContentsCount = 0; }
 
-    virtual void update(ResourceUpdateQueue& queue, const OcclusionTracker* occlusion, RenderingStats& stats) OVERRIDE
+    virtual void update(ResourceUpdateQueue& queue, const OcclusionTracker* occlusion, RenderingStats* stats) OVERRIDE
     {
         ContentLayer::update(queue, occlusion, stats);
         m_paintContentsCount++;
     }
 
 private:
     explicit ContentLayerWithUpdateTracking(ContentLayerClient* client)
         : ContentLayer(client)
         , m_paintContentsCount(0)
     {
@@ skipping 661 matching lines @@
     scoped_refptr<ContentLayerWithUpdateTracking> m_surfaceLayer2;
     scoped_refptr<ContentLayerWithUpdateTracking> m_replicaLayer2;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSurfaceNotAllocatedForLayersOutsideMemoryLimit)
 
 class EvictionTestLayer : public Layer {
 public:
     static scoped_refptr<EvictionTestLayer> create() { return make_scoped_refptr(new EvictionTestLayer()); }
 
-    virtual void update(ResourceUpdateQueue&, const OcclusionTracker*, RenderingStats&) OVERRIDE;
+    virtual void update(ResourceUpdateQueue&, const OcclusionTracker*, RenderingStats*) OVERRIDE;
     virtual bool drawsContent() const OVERRIDE { return true; }
 
     virtual scoped_ptr<LayerImpl> createLayerImpl(LayerTreeImpl* treeImpl) OVERRIDE;
     virtual void pushPropertiesTo(LayerImpl*) OVERRIDE;
     virtual void setTexturePriorities(const PriorityCalculator&) OVERRIDE;
 
     bool haveBackingTexture() const { return m_texture.get() ? m_texture->haveBackingTexture() : false; }
 
 private:
     EvictionTestLayer() : Layer() { }
@@ skipping 37 matching lines @@
 };
 
 void EvictionTestLayer::setTexturePriorities(const PriorityCalculator&)
 {
     createTextureIfNeeded();
     if (!m_texture.get())
         return;
     m_texture->setRequestPriority(PriorityCalculator::uiPriority(true));
 }
 
-void EvictionTestLayer::update(ResourceUpdateQueue& queue, const OcclusionTracker*, RenderingStats&)
+void EvictionTestLayer::update(ResourceUpdateQueue& queue, const OcclusionTracker*, RenderingStats*)
 {
     createTextureIfNeeded();
     if (!m_texture.get())
         return;
 
     gfx::Rect fullRect(0, 0, 10, 10);
     ResourceUpdate upload = ResourceUpdate::Create(
         m_texture.get(), &m_bitmap, fullRect, fullRect, gfx::Vector2d());
     queue.appendFullUpload(upload);
 }
@@ skipping 547 matching lines @@
 }
 
 TEST_F(LayerTreeHostTestMaxPendingFrames, GLRenderer)
 {
     m_delegatingRenderer = false;
     runTest(true);
 }
 
 }  // namespace
 }  // namespace cc