Remove parts of //cc we aren't using

cc/debug/rasterize_and_record_benchmark_impl.h

-// 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.
-
-#ifndef CC_DEBUG_RASTERIZE_AND_RECORD_BENCHMARK_IMPL_H_
-#define CC_DEBUG_RASTERIZE_AND_RECORD_BENCHMARK_IMPL_H_
-
-#include <map>
-#include <utility>
-#include <vector>
-
-#include "base/time/time.h"
-#include "cc/debug/micro_benchmark_impl.h"
-#include "cc/resources/task_graph_runner.h"
-
-namespace cc {
-
-class LayerTreeHostImpl;
-class PictureLayerImpl;
-class LayerImpl;
-class RasterizeAndRecordBenchmarkImpl : public MicroBenchmarkImpl {
- public:
-  explicit RasterizeAndRecordBenchmarkImpl(
-      scoped_refptr<base::MessageLoopProxy> origin_loop,
-      base::Value* value,
-      const MicroBenchmarkImpl::DoneCallback& callback);
-  ~RasterizeAndRecordBenchmarkImpl() override;
-
-  // Implements MicroBenchmark interface.
-  void DidCompleteCommit(LayerTreeHostImpl* host) override;
-  void RunOnLayer(PictureLayerImpl* layer) override;
-
- private:
-  struct RasterizeResults {
-    RasterizeResults();
-    ~RasterizeResults();
-
-    int pixels_rasterized;
-    int pixels_rasterized_with_non_solid_color;
-    int pixels_rasterized_as_opaque;
-    base::TimeDelta total_best_time;
-    int total_memory_usage;
-    int total_layers;
-    int total_picture_layers;
-    int total_picture_layers_with_no_content;
-    int total_picture_layers_off_screen;
-  };
-
-  RasterizeResults rasterize_results_;
-  int rasterize_repeat_count_;
-};
-
-}  // namespace cc
-
-#endif  // CC_DEBUG_RASTERIZE_AND_RECORD_BENCHMARK_IMPL_H_