gesture recognizer: Expose bounding-box for the points in a gesture-event.

ui/base/gestures/gesture_types.cc

Index: ui/base/gestures/gesture_types.cc
diff --git a/ui/base/gestures/gesture_types.cc b/ui/base/gestures/gesture_types.cc
index 8c18e5640b7ceabd487dfb0d3e8f27ac40100adf..2d329803be72029844d4b22839589e78ba6ae142 100644
--- a/ui/base/gestures/gesture_types.cc
+++ b/ui/base/gestures/gesture_types.cc
@@ -22,22 +22,11 @@ GestureEventDetails::GestureEventDetails(ui::EventType type,
       data.velocity.y = delta_y;
       break;
 
-    case ui::ET_GESTURE_TAP:
-      data.radius.x = delta_x;
-      data.radius.y = delta_y;
-      break;
-
     case ui::ET_GESTURE_LONG_PRESS:
       data.touch_id = static_cast<int>(delta_x);
       CHECK_EQ(0.f, delta_y) << "Unknown data in delta_y for long press.";
       break;
 
-    case ui::ET_GESTURE_BEGIN:
-    case ui::ET_GESTURE_END:
-      set_touch_points(static_cast<int>(delta_x));
-      CHECK_EQ(0.f, delta_y) << "Unknown data in delta_y for begin/end";
-      break;
-
     case ui::ET_GESTURE_PINCH_UPDATE:
       data.scale = delta_x;
       CHECK_EQ(0.f, delta_y) << "Unknown data in delta_y for pinch";