cc:: Add RenderingStatsInstrumentation to manage collection of RenderingStats

cc/delegated_renderer_layer_impl_unittest.cc

Index: cc/delegated_renderer_layer_impl_unittest.cc
diff --git a/cc/delegated_renderer_layer_impl_unittest.cc b/cc/delegated_renderer_layer_impl_unittest.cc
index 7ab8b5a18a44b62799628873fb77c87a7c3d8d37..66849abc61d12900b0f753b24dd942df8468faa4 100644
--- a/cc/delegated_renderer_layer_impl_unittest.cc
+++ b/cc/delegated_renderer_layer_impl_unittest.cc
@@ -37,7 +37,13 @@ class DelegatedRendererLayerImplTest : public testing::Test {
     LayerTreeSettings settings;
     settings.minimumOcclusionTrackingSize = gfx::Size();
 
-    host_impl_ = LayerTreeHostImpl::create(settings, &client_, &proxy_);
+    scoped_ptr<RenderingStatsRecorder> stats_recorder =
+        RenderingStatsRecorder::create();
+
+    host_impl_ = LayerTreeHostImpl::create(settings,
+                                           &client_,
+                                           &proxy_,
+                                           stats_recorder.get());
     host_impl_->initializeRenderer(createFakeOutputSurface());
     host_impl_->setViewportSize(gfx::Size(10, 10), gfx::Size(10, 10));
   }