Make PointerEvent coordinates fractional for touch

third_party/WebKit/LayoutTests/fast/events/pointerevents/touch-pointer-events.html

Index: third_party/WebKit/LayoutTests/fast/events/pointerevents/touch-pointer-events.html
diff --git a/third_party/WebKit/LayoutTests/fast/events/pointerevents/touch-pointer-events.html b/third_party/WebKit/LayoutTests/fast/events/pointerevents/touch-pointer-events.html
index 481e890f85a3e7f5fe86f1d2795a06ce67f6c7a4..e49e2476a8d7f2cbd27f206cffdccbf94deb0e1d 100644
--- a/third_party/WebKit/LayoutTests/fast/events/pointerevents/touch-pointer-events.html
+++ b/third_party/WebKit/LayoutTests/fast/events/pointerevents/touch-pointer-events.html
@@ -83,13 +83,13 @@ function testPEParamsSingleTouch(x, y) {
   }
   shouldBeEqualToNumber("receivedPEsAtTarget.length", i);
 
-  eventSender.updateTouchPoint(0, x+20, y+20);
+  eventSender.updateTouchPoint(0, x+20.5, y+19.25);
   eventSender.touchMove();
   shouldBeTrue("receivedPEsAtTarget["+i+"].isPrimary");
   shouldBeEqualToNumber("receivedPEsAtTarget["+i+"].button", -1);
   shouldBeEqualToNumber("receivedPEsAtTarget["+i+"].buttons", 1);
-  shouldBeEqualToNumber("receivedPEsAtTarget["+i+"].clientX", x+20);
-  shouldBeEqualToNumber("receivedPEsAtTarget["+i+"].clientY", y+20);
+  shouldBeEqualToNumber("receivedPEsAtTarget["+i+"].clientX", x+20.5);
+  shouldBeEqualToNumber("receivedPEsAtTarget["+i+"].clientY", y+19.25);

[Rick Byers, 2016/10/13 19:08:21]

add test for fractional screen and page co-ordinates as well.

Since the code paths are the same (and pointermove is the important case) I'm
fine with testing fractional co-ordinates on just the pointermove event.

[mustaq, 2016/10/14 14:26:58]

Done.

   shouldBeEqualToNumber("receivedPEsAtTarget.length", ++i);
 
   eventSender.releaseTouchPoint(0);