Add use counters for lots of DOM APIs.

third_party/WebKit/Source/core/css/StyleSheet.idl

Index: third_party/WebKit/Source/core/css/StyleSheet.idl
diff --git a/third_party/WebKit/Source/core/css/StyleSheet.idl b/third_party/WebKit/Source/core/css/StyleSheet.idl
index a9598e97b370bc8a79517575790e8878c0faabaf..6b14edaca194e9986fd04b4ba1eb63638d272672 100644
--- a/third_party/WebKit/Source/core/css/StyleSheet.idl
+++ b/third_party/WebKit/Source/core/css/StyleSheet.idl
@@ -23,13 +23,13 @@
 [
     SetWrapperReferenceFrom=ownerNode,
 ] interface StyleSheet {
-    readonly attribute DOMString type;
-    readonly attribute DOMString? href;
+    [Measure] readonly attribute DOMString type;
+    [Measure] readonly attribute DOMString? href;
     // TODO(foolip): ownerNode should be (Element or ProcessingInstruction).
-    readonly attribute Node? ownerNode;
-    readonly attribute StyleSheet? parentStyleSheet;
-    readonly attribute DOMString? title;
+    [Measure] readonly attribute Node? ownerNode;
+    [Measure] readonly attribute StyleSheet? parentStyleSheet;
+    [Measure] readonly attribute DOMString? title;
     // TODO(foolip): media should have [PutForwards=mediaText].
-    [SameObject] readonly attribute MediaList media;
-    attribute boolean disabled;
+    [SameObject, Measure] readonly attribute MediaList media;
+    [Measure] attribute boolean disabled;
 };