Delete mus surfaces hit testing

components/mus/surfaces/surfaces_state.h

 // Copyright 2015 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 COMPONENTS_MUS_SURFACES_SURFACES_STATE_H_
 #define COMPONENTS_MUS_SURFACES_SURFACES_STATE_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "cc/surfaces/surface_hittest.h"
 #include "cc/surfaces/surface_manager.h"
 
 namespace cc {
 class SurfaceHittest;
 class SurfaceManager;
 }  // namespace cc
 
 namespace mus {
 
 // The SurfacesState object is an object global to the Window Manager app that
 // holds the SurfaceManager and allocates new Surfaces namespaces.
 // This object lives on the main thread of the Window Manager.
 // TODO(rjkroege, fsamuel): This object will need to change to support multiple
 // displays.
 class SurfacesState : public base::RefCounted<SurfacesState> {
  public:
   SurfacesState();
 
   uint32_t next_id_namespace() { return next_id_namespace_++; }
 
   cc::SurfaceManager* manager() { return &manager_; }
 
-  cc::SurfaceHittest* hit_tester() { return &hit_tester_; }
-
  private:
   friend class base::RefCounted<SurfacesState>;
   ~SurfacesState();
 
   // A Surface ID is an unsigned 64-bit int where the high 32-bits are generated
   // by the Surfaces service, and the low 32-bits are generated by the process
   // that requested the Surface.
   uint32_t next_id_namespace_;
   cc::SurfaceManager manager_;
-  cc::SurfaceHittest hit_tester_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfacesState);
 };
 
 }  // namespace mus
 
 #endif  //  COMPONENTS_MUS_SURFACES_SURFACES_STATE_H_