Add use counters for lots of DOM APIs.

third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerGlobalScope.idl

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * 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
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 // https://w3c.github.io/ServiceWorker/#service-worker-global-scope-interface
 
 [
     Exposed=ServiceWorker,
     Global=(Worker,ServiceWorker),
 ] interface ServiceWorkerGlobalScope : WorkerGlobalScope {
 
-  readonly attribute Clients clients;
-  readonly attribute ServiceWorkerRegistration registration;
+  [Measure] readonly attribute Clients clients;
+  [Measure] readonly attribute ServiceWorkerRegistration registration;
 
-  [CallWith=ScriptState, RaisesException] Promise<Response> fetch(RequestInfo input, optional Dictionary init);
+  [Measure, CallWith=ScriptState, RaisesException] Promise<Response> fetch(RequestInfo input, optional Dictionary init);
 
-  [CallWith=ScriptState] Promise<void> skipWaiting();
+  [Measure, CallWith=ScriptState] Promise<void> skipWaiting();
 
-  attribute EventHandler onactivate;
-  attribute EventHandler onfetch;
-  attribute EventHandler oninstall;
-  attribute EventHandler onmessage;
-  [OriginTrialEnabled=ForeignFetch] attribute EventHandler onforeignfetch;
+  [Measure] attribute EventHandler onactivate;
+  [Measure] attribute EventHandler onfetch;
+  [Measure] attribute EventHandler oninstall;
+  [Measure] attribute EventHandler onmessage;
+  [Measure, OriginTrialEnabled=ForeignFetch] attribute EventHandler onforeignfetch;
 };