Remove parts of //cc we aren't using

cc/debug/micro_benchmark.cc

-// Copyright 2013 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/debug/micro_benchmark.h"
-
-#include "base/callback.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop_proxy.h"
-#include "base/values.h"
-#include "cc/debug/micro_benchmark_impl.h"
-
-namespace cc {
-
-MicroBenchmark::MicroBenchmark(const DoneCallback& callback)
-    : callback_(callback),
-      is_done_(false),
-      processed_for_benchmark_impl_(false),
-      id_(0) {
-}
-
-MicroBenchmark::~MicroBenchmark() {}
-
-bool MicroBenchmark::IsDone() const {
-  return is_done_;
-}
-
-void MicroBenchmark::DidUpdateLayers(LayerTreeHost* host) {}
-
-void MicroBenchmark::NotifyDone(scoped_ptr<base::Value> result) {
-  callback_.Run(result.Pass());
-  is_done_ = true;
-}
-
-void MicroBenchmark::RunOnLayer(Layer* layer) {}
-
-void MicroBenchmark::RunOnLayer(PictureLayer* layer) {}
-
-bool MicroBenchmark::ProcessMessage(scoped_ptr<base::Value> value) {
-  return false;
-}
-
-bool MicroBenchmark::ProcessedForBenchmarkImpl() const {
-  return processed_for_benchmark_impl_;
-}
-
-scoped_ptr<MicroBenchmarkImpl> MicroBenchmark::GetBenchmarkImpl(
-    scoped_refptr<base::MessageLoopProxy> origin_loop) {
-  DCHECK(!processed_for_benchmark_impl_);
-  processed_for_benchmark_impl_ = true;
-  return CreateBenchmarkImpl(origin_loop);
-}
-
-scoped_ptr<MicroBenchmarkImpl> MicroBenchmark::CreateBenchmarkImpl(
-    scoped_refptr<base::MessageLoopProxy> origin_loop) {
-  return make_scoped_ptr<MicroBenchmarkImpl>(nullptr);
-}
-
-}  // namespace cc