Clean up forward declarations in Source/platform

Source/platform/geometry/FloatRect.h

 /*
  * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2005 Nokia.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 25 matching lines @@
 
 #ifdef __OBJC__
 #import <Foundation/Foundation.h>
 #endif
 #endif
 
 namespace blink {
 
 class LayoutRect;
 class IntRect;
-class IntPoint;
 
 class PLATFORM_EXPORT FloatRect {
 public:
     enum ContainsMode {
         InsideOrOnStroke,
         InsideButNotOnStroke
     };
 
     FloatRect() { }
     FloatRect(const FloatPoint& location, const FloatSize& size)
@@ skipping 175 matching lines @@
 PLATFORM_EXPORT IntRect enclosedIntRect(const FloatRect&);
 
 PLATFORM_EXPORT IntRect roundedIntRect(const FloatRect&);
 
 // Map supplied rect from srcRect to an equivalent rect in destRect.
 PLATFORM_EXPORT FloatRect mapRect(const FloatRect&, const FloatRect& srcRect, const FloatRect& destRect);
 
 }
 
 #endif