Add Client Attribute to FetchEvent- Blink Side.

Source/web/ServiceWorkerGlobalScopeProxy.cpp

Index: Source/web/ServiceWorkerGlobalScopeProxy.cpp
diff --git a/Source/web/ServiceWorkerGlobalScopeProxy.cpp b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
index 6b3513a7d5fa1fc44bff93e0b01799d74c2069b7..be40bcbb75ae5e3472a70a11c95b1c3b6878def5 100644
--- a/Source/web/ServiceWorkerGlobalScopeProxy.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
@@ -51,7 +51,9 @@
 #include "modules/push_messaging/PushMessageData.h"
 #include "modules/serviceworkers/ExtendableEvent.h"
 #include "modules/serviceworkers/FetchEvent.h"
+#include "modules/serviceworkers/ServiceWorkerClient.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScope.h"
+#include "modules/serviceworkers/ServiceWorkerWindowClient.h"
 #include "modules/serviceworkers/WaitUntilObserver.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "public/platform/WebCrossOriginServiceWorkerClient.h"
@@ -103,7 +105,12 @@ void ServiceWorkerGlobalScopeProxy::dispatchFetchEvent(int eventID, const WebSer
     request->headers()->setGuard(Headers::ImmutableGuard);
     FetchEventInit eventInit;
     eventInit.setRequest(request);
-    eventInit.setIsReload(webRequest.isReload());
+    if (webRequest.client().clientType == WebServiceWorkerClientTypeWindow) {
+        eventInit.setClient(ServiceWorkerWindowClient::create(webRequest.client()));
+        eventInit.setIsReload(webRequest.isReload());
+    } else {
+        eventInit.setClient(ServiceWorkerClient::create(webRequest.client()));
+    }
     RefPtrWillBeRawPtr<FetchEvent> fetchEvent(FetchEvent::create(EventTypeNames::fetch, eventInit, observer));
     defaultPrevented = !m_workerGlobalScope->dispatchEvent(fetchEvent.release());
     observer->didDispatchEvent(defaultPrevented);