Dispatch the ServiceWorker "activate" event during activation

Source/web/ServiceWorkerGlobalScopeProxy.cpp

Index: Source/web/ServiceWorkerGlobalScopeProxy.cpp
diff --git a/Source/web/ServiceWorkerGlobalScopeProxy.cpp b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
index eac77767eb485f805953b45b3fa64067ea1af3bb..04725e7980260755f1470ee482b5dec0305e9fad 100644
--- a/Source/web/ServiceWorkerGlobalScopeProxy.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
@@ -41,6 +41,7 @@
 #include "core/workers/WorkerGlobalScope.h"
 #include "modules/serviceworkers/FetchEvent.h"
 #include "modules/serviceworkers/InstallEvent.h"
+#include "modules/serviceworkers/InstallPhaseEvent.h"
 #include "modules/serviceworkers/WaitUntilObserver.h"
 #include "platform/NotImplemented.h"
 #include "wtf/Functional.h"
@@ -62,12 +63,21 @@ ServiceWorkerGlobalScopeProxy::~ServiceWorkerGlobalScopeProxy()
 void ServiceWorkerGlobalScopeProxy::dispatchInstallEvent(int eventID)
 {
     ASSERT(m_workerGlobalScope);
-    RefPtr<WaitUntilObserver> observer = WaitUntilObserver::create(m_workerGlobalScope, eventID);
+    RefPtr<WaitUntilObserver> observer = WaitUntilObserver::create(m_workerGlobalScope, WaitUntilObserver::Install, eventID);
     observer->willDispatchEvent();
     m_workerGlobalScope->dispatchEvent(InstallEvent::create(EventTypeNames::install, EventInit(), observer));
     observer->didDispatchEvent();
 }
 
+void ServiceWorkerGlobalScopeProxy::dispatchActivateEvent(int eventID)
+{
+    ASSERT(m_workerGlobalScope);
+    RefPtr<WaitUntilObserver> observer = WaitUntilObserver::create(m_workerGlobalScope, WaitUntilObserver::Activate, eventID);
+    observer->willDispatchEvent();
+    m_workerGlobalScope->dispatchEvent(InstallPhaseEvent::create(EventTypeNames::activate, EventInit(), observer));
+    observer->didDispatchEvent();
+}
+
 void ServiceWorkerGlobalScopeProxy::dispatchFetchEvent(int eventID)
 {
     ASSERT(m_workerGlobalScope);