Add use counters for lots of DOM APIs.

third_party/WebKit/Source/core/workers/SharedWorkerGlobalScope.idl

Index: third_party/WebKit/Source/core/workers/SharedWorkerGlobalScope.idl
diff --git a/third_party/WebKit/Source/core/workers/SharedWorkerGlobalScope.idl b/third_party/WebKit/Source/core/workers/SharedWorkerGlobalScope.idl
index 66e9eef69d4ac1c3c3a8cde0c2b80ee5911154ce..08102a1adb9f5fbed104f0994ae2386bb370f479 100644
--- a/third_party/WebKit/Source/core/workers/SharedWorkerGlobalScope.idl
+++ b/third_party/WebKit/Source/core/workers/SharedWorkerGlobalScope.idl
@@ -34,10 +34,10 @@
     Global=(Worker,SharedWorker),
     Exposed=SharedWorker,
 ] interface SharedWorkerGlobalScope : WorkerGlobalScope {
-    readonly attribute DOMString name;
+    [Measure] readonly attribute DOMString name;
     // TODO(foolip): readonly attribute ApplicationCache applicationCache;
 
-    void close();
+    [Measure] void close();
 
-    attribute EventHandler onconnect;
+    [Measure] attribute EventHandler onconnect;
 };