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..f2cbb951f08f3a8a8fbb71128fadac063145f1b2 100644
--- a/Source/web/ServiceWorkerGlobalScopeProxy.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
@@ -51,6 +51,7 @@
 #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/WaitUntilObserver.h"
 #include "platform/RuntimeEnabledFeatures.h"
@@ -104,6 +105,7 @@ void ServiceWorkerGlobalScopeProxy::dispatchFetchEvent(int eventID, const WebSer
     FetchEventInit eventInit;
     eventInit.setRequest(request);
     eventInit.setIsReload(webRequest.isReload());
+    eventInit.setClient(ServiceWorkerClient::create(webRequest.client()));

[jsbell, 2015/04/27 23:32:47]

This should create a ServiceWorkerWindowClient if clientType is
WebServiceWorkerClientTypeWindow, shouldn't it?

Maybe factor out a helper function from ClientArray::take()?

[Paritosh Kumar, 2015/05/05 14:22:24]

Yes.. Done.

     RefPtrWillBeRawPtr<FetchEvent> fetchEvent(FetchEvent::create(EventTypeNames::fetch, eventInit, observer));
     defaultPrevented = !m_workerGlobalScope->dispatchEvent(fetchEvent.release());
     observer->didDispatchEvent(defaultPrevented);