Remove parts of //cc we aren't using

cc/debug/micro_benchmark_impl.cc

Index: cc/debug/micro_benchmark_impl.cc
diff --git a/cc/debug/micro_benchmark_impl.cc b/cc/debug/micro_benchmark_impl.cc
deleted file mode 100644
index 7ec58c8de0be3c8afe1b2fcf7ec35a3dfd16973c..0000000000000000000000000000000000000000
--- a/cc/debug/micro_benchmark_impl.cc
+++ /dev/null
@@ -1,48 +0,0 @@
-// 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_impl.h"
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/values.h"
-
-namespace cc {
-
-namespace {
-
-void RunCallback(const MicroBenchmarkImpl::DoneCallback& callback,
-                 scoped_ptr<base::Value> result) {
-  callback.Run(result.Pass());
-}
-
-}
-
-MicroBenchmarkImpl::MicroBenchmarkImpl(
-    const DoneCallback& callback,
-    scoped_refptr<base::MessageLoopProxy> origin_loop)
-    : callback_(callback), is_done_(false), origin_loop_(origin_loop) {}
-
-MicroBenchmarkImpl::~MicroBenchmarkImpl() {}
-
-bool MicroBenchmarkImpl::IsDone() const {
-  return is_done_;
-}
-
-void MicroBenchmarkImpl::DidCompleteCommit(LayerTreeHostImpl* host) {}
-
-void MicroBenchmarkImpl::NotifyDone(scoped_ptr<base::Value> result) {
-  origin_loop_->PostTask(
-    FROM_HERE,
-    base::Bind(RunCallback, callback_, base::Passed(&result)));
-  is_done_ = true;
-}
-
-void MicroBenchmarkImpl::RunOnLayer(LayerImpl* layer) {}
-
-void MicroBenchmarkImpl::RunOnLayer(PictureLayerImpl* layer) {}
-
-}  // namespace cc