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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
      6 #define CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
      7 
      8 namespace cc {
      9 
     10 class LayerTreeImpl;
     11 
     12 class CC_EXPORT TopControlsManagerClient {
     13  public:
     14   virtual void DidChangeTopControlsPosition() = 0;
     15   virtual bool HaveRootScrollLayer() const = 0;
     16 
     17  protected:
     18   virtual ~TopControlsManagerClient() {}
     19 };
     20 
     21 }  // namespace cc
     22 
     23 #endif  // CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
     24