Added unprefixed version of Touch radius and force

Source/core/dom/Touch.idl

Index: Source/core/dom/Touch.idl
diff --git a/Source/core/dom/Touch.idl b/Source/core/dom/Touch.idl
index 574d68441d0d5d0e8bad8011acfbe964eca49529..f562da669869c8766e0ccf057465eff2641176a1 100644
--- a/Source/core/dom/Touch.idl
+++ b/Source/core/dom/Touch.idl
@@ -34,6 +34,9 @@
     readonly attribute double           pageY;
     readonly attribute EventTarget      target;
     readonly attribute unsigned long    identifier;
+    readonly attribute double             radiusX;
+    readonly attribute double             radiusY;

[Rick Byers, 2014/06/22 16:57:59]

nit: please follow the existing style of aligning the property names under each
other.

[gnana, 2014/06/23 11:08:58]

Done.

+    readonly attribute float            force;
     [MeasureAs=PrefixedTouchRadiusX] readonly attribute double webkitRadiusX;
     [MeasureAs=PrefixedTouchRadiusY] readonly attribute double webkitRadiusY;
     [MeasureAs=PrefixedTouchRotationAngle] readonly attribute float webkitRotationAngle;