cc: Plumbing for impl thread micro benchmarks

cc/test/fake_layer_tree_host.h

Index: cc/test/fake_layer_tree_host.h
diff --git a/cc/test/fake_layer_tree_host.h b/cc/test/fake_layer_tree_host.h
index 09657ef68d1144191ee3fcecfbe991f8018b5be7..29426e80db3b7dca29676e2f1ff3cd059061d3ca 100644
--- a/cc/test/fake_layer_tree_host.h
+++ b/cc/test/fake_layer_tree_host.h
@@ -5,6 +5,7 @@
 #ifndef CC_TEST_FAKE_LAYER_TREE_HOST_H_
 #define CC_TEST_FAKE_LAYER_TREE_HOST_H_
 
+#include "cc/debug/micro_benchmark_controller.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_client.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
@@ -42,6 +43,10 @@ class FakeLayerTreeHost : public LayerTreeHost {
     LayerTreeHost::UpdateLayers(queue);
   }
 
+  MicroBenchmarkController* GetMicroBenchmarkController() {
+    return &micro_benchmark_controller_;
+  }
+
   bool needs_commit() { return needs_commit_; }
 
  private: