Add use counters for lots of DOM APIs.

third_party/WebKit/Source/core/dom/Touch.idl

 /*
  * Copyright 2008, The Android Open Source Project
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *  * Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 19 matching lines @@
     ConstructorCallWith=Document,
 ] interface Touch {
     readonly attribute long identifier;
     readonly attribute EventTarget target;
     readonly attribute double screenX;
     readonly attribute double screenY;
     readonly attribute double clientX;
     readonly attribute double clientY;
     readonly attribute double pageX;
     readonly attribute double pageY;
-    readonly attribute float radiusX;
-    readonly attribute float radiusY;
-    readonly attribute float rotationAngle;
-    readonly attribute float force;
+    [Measure] readonly attribute float radiusX;
+    [Measure] readonly attribute float radiusY;
+    [Measure] readonly attribute float rotationAngle;
+    [Measure] readonly attribute float force;
 
     // Canvas Hit Regions
     // https://html.spec.whatwg.org/multipage/scripting.html#Touch-partial
-    [RuntimeEnabled=ExperimentalCanvasFeatures] readonly attribute DOMString? region;
+    [Measure, RuntimeEnabled=ExperimentalCanvasFeatures] readonly attribute DOMString? region;
 };