Don't use the touch rect when targetting above the touch handles

ui/touch_selection/touch_handle_unittest.cc

Index: ui/touch_selection/touch_handle_unittest.cc
diff --git a/ui/touch_selection/touch_handle_unittest.cc b/ui/touch_selection/touch_handle_unittest.cc
index 8e929815157bca518ed896be97dfd1dfac95e529..944db37e2f3f6f857f1fa9041ccecfdce320b4a5 100644
--- a/ui/touch_selection/touch_handle_unittest.cc
+++ b/ui/touch_selection/touch_handle_unittest.cc
@@ -458,6 +458,14 @@ TEST_F(TouchHandleTest, DragTargettingUsesTouchSize) {
   event.SetTouchMajor(0);
   EXPECT_TRUE(handle.WillHandleTouchEvent(event));
   EXPECT_TRUE(IsDragging());
+
+  // Touches centered above the handle region should never register a hit, even
+  // if the touch region intersects the handle region.
+  event = MockMotionEvent(MockMotionEvent::ACTION_DOWN, event_time,
+                          kDefaultDrawableSize / 2.f, -kTouchSize / 3.f);
+  event.SetTouchMajor(kTouchSize);
+  EXPECT_FALSE(handle.WillHandleTouchEvent(event));
+  EXPECT_FALSE(IsDragging());
 }
 
 TEST_F(TouchHandleTest, Tap) {