Rework compositor touch hit testing

Source/core/testing/LayerRect.idl

Index: Source/core/testing/LayerRect.idl
diff --git a/Source/core/html/canvas/OESElementIndexUint.idl b/Source/core/testing/LayerRect.idl
similarity index 88%
copy from Source/core/html/canvas/OESElementIndexUint.idl
copy to Source/core/testing/LayerRect.idl
index ecb5d891967af97101ac1b24f777c1b8e8f5e623..74b703d5bb0e231ee80ccb9790afa493178e3286 100644
--- a/Source/core/html/canvas/OESElementIndexUint.idl
+++ b/Source/core/testing/LayerRect.idl
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 Google Inc. All rights reserved.
+ * Copyright (C) 2012 SoftAtHome. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,6 +24,7 @@
  */
 
 [
-    NoInterfaceObject
-] interface OESElementIndexUint {
+] interface LayerRect {
+    readonly attribute Node layerRootNode;
+    readonly attribute ClientRect layerRelativeRect;
 };