cc:: Add RenderingStatsInstrumentation to manage collection of RenderingStats

cc/test/fake_layer_tree_host_impl.cc

Index: cc/test/fake_layer_tree_host_impl.cc
diff --git a/cc/test/fake_layer_tree_host_impl.cc b/cc/test/fake_layer_tree_host_impl.cc
index 334ff9fa66e921175a0bc7b4d25c7fc106c67a37..f393f1d23c5d0d21af63d698c42b19b7df71379a 100644
--- a/cc/test/fake_layer_tree_host_impl.cc
+++ b/cc/test/fake_layer_tree_host_impl.cc
@@ -7,7 +7,11 @@
 namespace cc {
 
 FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(Proxy* proxy)
-    : LayerTreeHostImpl(LayerTreeSettings(), &client_, proxy) {
+    : LayerTreeHostImpl(LayerTreeSettings(),
+                        &client_,
+                        proxy,
+                        &stats_instrumentation_)
+{
   // Explicitly clear all debug settings.
   SetDebugState(LayerTreeDebugState());
 }
@@ -15,7 +19,11 @@ FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(Proxy* proxy)
 FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(
     const LayerTreeSettings& settings,
     Proxy* proxy)
-    : LayerTreeHostImpl(settings, &client_, proxy) {
+    : LayerTreeHostImpl(settings,
+                        &client_,
+                        proxy,
+                        &stats_instrumentation_)
+{
   // Explicitly clear all debug settings.
   SetDebugState(LayerTreeDebugState());
 }