Introduce ServiceWorker.EventDispatchingDelay UMA

third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp

 /*
  * 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 128 matching lines @@
     RespondWithObserver* respondWithObserver = RespondWithObserver::create(workerGlobalScope(), responseID, webRequest.url(), webRequest.mode(), webRequest.frameType(), webRequest.requestContext(), waitUntilObserver);
     Request* request = Request::create(workerGlobalScope()->scriptController()->getScriptState(), webRequest);
     request->getHeaders()->setGuard(Headers::ImmutableGuard);
     FetchEventInit eventInit;
     eventInit.setCancelable(true);
     eventInit.setRequest(request);
     eventInit.setClientId(webRequest.isMainResourceLoad() ? WebString() : webRequest.clientId());
     eventInit.setIsReload(webRequest.isReload());
     FetchEvent* fetchEvent = FetchEvent::create(workerGlobalScope()->scriptController()->getScriptState(), EventTypeNames::fetch, eventInit, respondWithObserver, waitUntilObserver);
     waitUntilObserver->willDispatchEvent();
+    respondWithObserver->willDispatchEvent();
     DispatchEventResult dispatchResult = workerGlobalScope()->dispatchEvent(fetchEvent);
     respondWithObserver->didDispatchEvent(dispatchResult);
     // false is okay because waitUntil for fetch event doesn't care about the
     // promise rejection or an uncaught runtime script error.
     waitUntilObserver->didDispatchEvent(false /* errorOccurred */);
 }
 
 void ServiceWorkerGlobalScopeProxy::dispatchForeignFetchEvent(int responseID, int eventFinishID, const WebServiceWorkerRequest& webRequest)
 {
     if (!OriginTrials::foreignFetchEnabled(workerGlobalScope())) {
         // If origin trial tokens have expired, or are otherwise no longer valid
         // no events should be dispatched.
         // TODO(mek): Ideally the browser wouldn't even start the service worker
         // if its tokens have expired.
-        ServiceWorkerGlobalScopeClient::from(workerGlobalScope())->respondToFetchEvent(responseID);
-        ServiceWorkerGlobalScopeClient::from(workerGlobalScope())->didHandleFetchEvent(eventFinishID, WebServiceWorkerEventResultCompleted);
+        ServiceWorkerGlobalScopeClient::from(workerGlobalScope())->respondToFetchEvent(responseID, WTF::currentTime());
+        ServiceWorkerGlobalScopeClient::from(workerGlobalScope())->didHandleFetchEvent(eventFinishID, WebServiceWorkerEventResultCompleted, WTF::currentTime());
         return;
     }
 
     ScriptState::Scope scope(workerGlobalScope()->scriptController()->getScriptState());
     RefPtr<SecurityOrigin> origin = SecurityOrigin::create(webRequest.referrerUrl());
     WaitUntilObserver* waitUntilObserver = WaitUntilObserver::create(workerGlobalScope(), WaitUntilObserver::Fetch, eventFinishID);
     ForeignFetchRespondWithObserver* respondWithObserver = ForeignFetchRespondWithObserver::create(workerGlobalScope(), responseID, webRequest.url(), webRequest.mode(), webRequest.frameType(), webRequest.requestContext(), origin, waitUntilObserver);
     Request* request = Request::create(workerGlobalScope()->scriptController()->getScriptState(), webRequest);
     request->getHeaders()->setGuard(Headers::ImmutableGuard);
     ForeignFetchEventInit eventInit;
     eventInit.setCancelable(true);
     eventInit.setRequest(request);
     eventInit.setOrigin(origin->toString());
     ForeignFetchEvent* fetchEvent = ForeignFetchEvent::create(workerGlobalScope()->scriptController()->getScriptState(), EventTypeNames::foreignfetch, eventInit, respondWithObserver, waitUntilObserver);
     waitUntilObserver->willDispatchEvent();
+    respondWithObserver->willDispatchEvent();
     DispatchEventResult dispatchResult = workerGlobalScope()->dispatchEvent(fetchEvent);
     respondWithObserver->didDispatchEvent(dispatchResult);
     // false is okay because waitUntil for foreign fetch event doesn't care
     // about the promise rejection or an uncaught runtime script error.
     waitUntilObserver->didDispatchEvent(false /* errorOccurred */);
 }
 
 void ServiceWorkerGlobalScopeProxy::dispatchInstallEvent(int eventID)
 {
     WaitUntilObserver* observer = WaitUntilObserver::create(workerGlobalScope(), WaitUntilObserver::Install, eventID);
@@ skipping 29 matching lines @@
 void ServiceWorkerGlobalScopeProxy::dispatchPushEvent(int eventID, const WebString& data)
 {
     WaitUntilObserver* observer = WaitUntilObserver::create(workerGlobalScope(), WaitUntilObserver::Push, eventID);
     Event* event = PushEvent::create(EventTypeNames::push, PushMessageData::create(data), observer);
     workerGlobalScope()->dispatchExtendableEvent(event, observer);
 }
 
 void ServiceWorkerGlobalScopeProxy::dispatchSyncEvent(int eventID, const WebString& tag, LastChanceOption lastChance)
 {
     if (!RuntimeEnabledFeatures::backgroundSyncEnabled()) {
-        ServiceWorkerGlobalScopeClient::from(workerGlobalScope())->didHandleSyncEvent(eventID, WebServiceWorkerEventResultCompleted);
+        ServiceWorkerGlobalScopeClient::from(workerGlobalScope())->didHandleSyncEvent(eventID, WebServiceWorkerEventResultCompleted, WTF::currentTime());
         return;
     }
     WaitUntilObserver* observer = WaitUntilObserver::create(workerGlobalScope(), WaitUntilObserver::Sync, eventID);
     Event* event = SyncEvent::create(EventTypeNames::sync, tag, lastChance == IsLastChance, observer);
     workerGlobalScope()->dispatchExtendableEvent(event, observer);
 }
 
 bool ServiceWorkerGlobalScopeProxy::hasFetchEventHandler()
 {
     DCHECK(m_workerGlobalScope);
@@ skipping 81 matching lines @@
     return *m_document;
 }
 
 ServiceWorkerGlobalScope* ServiceWorkerGlobalScopeProxy::workerGlobalScope() const
 {
     DCHECK(m_workerGlobalScope);
     return m_workerGlobalScope;
 }
 
 } // namespace blink