components: Cleanup class/struct fwd declarations

components/exo/pointer_delegate.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_EXO_POINTER_DELEGATE_H_
 #define COMPONENTS_EXO_POINTER_DELEGATE_H_
 
 #include "base/time/time.h"
 #include "ui/events/event_constants.h"
 
 namespace gfx {
-class Point;
 class PointF;
 class Vector2dF;
 }
 
 namespace exo {
 class Pointer;
 class Surface;
 
 // Handles events on pointers in context-specific ways.
 class PointerDelegate {
@@ skipping 46 matching lines @@
   // this method is called.
   virtual void OnPointerFrame() = 0;
 
  protected:
   virtual ~PointerDelegate() {}
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_POINTER_DELEGATE_H_