Make Touch.radiusX/Y float and make Touch.webkit* aliases in the IDL

Source/core/dom/Touch.h

 /*
  * Copyright 2008, The Android Open Source Project
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *  * Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 43 matching lines @@
 
     // DOM Touch implementation
     EventTarget* target() const { return m_target.get(); }
     unsigned identifier() const { return m_identifier; }
     double clientX() const { return m_clientPos.x(); }
     double clientY() const { return m_clientPos.y(); }
     double screenX() const { return m_screenPos.x(); }
     double screenY() const { return m_screenPos.y(); }
     double pageX() const { return m_pagePos.x(); }
     double pageY() const { return m_pagePos.y(); }
-    double radiusX() const { return m_radius.width(); }
-    double webkitRadiusX() const { return m_radius.width(); }
-    double radiusY() const { return m_radius.height(); }
-    double webkitRadiusY() const { return m_radius.height(); }
-    float webkitRotationAngle() const { return m_rotationAngle; }
+    float radiusX() const { return m_radius.width(); }
+    float radiusY() const { return m_radius.height(); }
+    float rotationAngle() const { return m_rotationAngle; }
     float force() const { return m_force; }
-    float webkitForce() const { return m_force; }
 
     // Blink-internal methods
     const LayoutPoint& absoluteLocation() const { return m_absoluteLocation; }
     const FloatPoint& screenLocation() const { return m_screenPos; }
     PassRefPtrWillBeRawPtr<Touch> cloneWithNewTarget(EventTarget*) const;
 
     DECLARE_TRACE();
 
 private:
     Touch(LocalFrame* frame, EventTarget* target, unsigned identifier,
@@ skipping 18 matching lines @@
     float m_force;
     // FIXME(rbyers): Shouldn't we be able to migrate callers to relying on screenPos, pagePos
     // or clientPos? absoluteLocation appears to be the same as pagePos but without browser
     // scale applied.
     LayoutPoint m_absoluteLocation;
 };
 
 } // namespace blink
 
 #endif // Touch_h