Remove parts of //cc we aren't using

cc/input/top_controls_manager_client.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_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
-#define CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
-
-namespace cc {
-
-class LayerTreeImpl;
-
-class CC_EXPORT TopControlsManagerClient {
- public:
-  virtual float TopControlsHeight() const = 0;
-  virtual void SetCurrentTopControlsShownRatio(float ratio) = 0;
-  virtual float CurrentTopControlsShownRatio() const = 0;
-  virtual void DidChangeTopControlsPosition() = 0;
-  virtual bool HaveRootScrollLayer() const = 0;
-
- protected:
-  virtual ~TopControlsManagerClient() {}
-};
-
-}  // namespace cc
-
-#endif  // CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_