cc:: Add RenderingStatsInstrumentation to manage collection of RenderingStats

cc/test/layer_tree_test_common.h

Index: cc/test/layer_tree_test_common.h
diff --git a/cc/test/layer_tree_test_common.h b/cc/test/layer_tree_test_common.h
index ac9534e3d1eaa0397e58f7bf0aebc83a1e556f6f..ad25ced8dadfe6fb9b0e655e45a2e373ef558978 100644
--- a/cc/test/layer_tree_test_common.h
+++ b/cc/test/layer_tree_test_common.h
@@ -161,7 +161,7 @@ public:
 // Adapts LayerTreeHostImpl for test. Runs real code, then invokes test hooks.
 class MockLayerTreeHostImpl : public LayerTreeHostImpl {
 public:
-    static scoped_ptr<MockLayerTreeHostImpl> create(TestHooks*, const LayerTreeSettings&, LayerTreeHostImplClient*, Proxy*);
+    static scoped_ptr<MockLayerTreeHostImpl> create(TestHooks*, const LayerTreeSettings&, LayerTreeHostImplClient*, Proxy*, RenderingStatsInstrumentation*);
 
     virtual void BeginCommit() OVERRIDE;
     virtual void CommitComplete() OVERRIDE;
@@ -180,7 +180,7 @@ protected:
     virtual base::TimeDelta LowFrequencyAnimationInterval() const OVERRIDE;
 
 private:
-    MockLayerTreeHostImpl(TestHooks*, const LayerTreeSettings&, LayerTreeHostImplClient*, Proxy*);
+    MockLayerTreeHostImpl(TestHooks*, const LayerTreeSettings&, LayerTreeHostImplClient*, Proxy*, RenderingStatsInstrumentation*);
 
     TestHooks* m_testHooks;
 };