touch: Make sure the correct radius values are used for touch events.

ui/base/x/events_x.cc

Index: ui/base/x/events_x.cc
diff --git a/ui/base/x/events_x.cc b/ui/base/x/events_x.cc
index 47cb746d91dbbffaf02fe6154f5e48b84f1c8fd4..4d822e47f903a12b74a4e4b7534853586707f140 100644
--- a/ui/base/x/events_x.cc
+++ b/ui/base/x/events_x.cc
@@ -834,12 +834,12 @@ int GetTouchId(const base::NativeEvent& xev) {
 
 float GetTouchRadiusX(const base::NativeEvent& native_event) {
   return GetTouchParamFromXEvent(native_event,
-      ui::TouchFactory::TP_TOUCH_MAJOR, 2.0) / 2.0;
+      ui::TouchFactory::TP_TOUCH_MAJOR, 0.0) / 2.0;
 }
 
 float GetTouchRadiusY(const base::NativeEvent& native_event) {
   return GetTouchParamFromXEvent(native_event,
-      ui::TouchFactory::TP_TOUCH_MINOR, 2.0) / 2.0;
+      ui::TouchFactory::TP_TOUCH_MINOR, 0.0) / 2.0;
 }
 
 float GetTouchAngle(const base::NativeEvent& native_event) {