Expose fractional TouchEvent coordinates

Source/platform/geometry/FloatSize.h

 /*
  * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2005 Nokia.  All rights reserved.
  *               2008 Eric Seidel <eric@webkit.org>
  *
  * 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.
@@ skipping 84 matching lines @@
     float diagonalLengthSquared() const
     {
         return m_width * m_width + m_height * m_height;
     }
 
     FloatSize transposedSize() const
     {
         return FloatSize(m_height, m_width);
     }
 
+    FloatSize scaledBy(float scale) const
+    {
+        return scaledBy(scale, scale);
+    }
+
+    FloatSize scaledBy(float scaleX, float scaleY) const
+    {
+        return FloatSize(m_width * scaleX, m_height * scaleY);
+    }
+
 #if OS(MACOSX)
     explicit FloatSize(const CGSize&); // don't do this implicitly since it's lossy
     operator CGSize() const;
 #if defined(__OBJC__) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
     explicit FloatSize(const NSSize &); // don't do this implicitly since it's lossy
     operator NSSize() const;
 #endif
 #endif
 
 private:
@@ skipping 65 matching lines @@
 }
 
 inline IntPoint flooredIntPoint(const FloatSize& p)
 {
     return IntPoint(clampToInteger(floorf(p.width())), clampToInteger(floorf(p.height())));
 }
 
 } // namespace WebCore
 
 #endif // FloatSize_h