Remove parts of //cc we aren't using

cc/test/fake_video_frame_provider.cc

-// Copyright 2012 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/test/fake_video_frame_provider.h"
-
-namespace cc {
-
-FakeVideoFrameProvider::FakeVideoFrameProvider()
-    : frame_(NULL), client_(NULL) {}
-
-FakeVideoFrameProvider::~FakeVideoFrameProvider() {
-  if (client_)
-    client_->StopUsingProvider();
-}
-
-void FakeVideoFrameProvider::SetVideoFrameProviderClient(Client* client) {
-  client_ = client;
-}
-
-scoped_refptr<media::VideoFrame> FakeVideoFrameProvider::GetCurrentFrame() {
-  return frame_;
-}
-
-}  // namespace cc