Implement ServiceWorkerClient attributes [1/3]

public/platform/WebServiceWorkerProviderClient.h

Index: public/platform/WebServiceWorkerProviderClient.h
diff --git a/public/platform/WebServiceWorkerProviderClient.h b/public/platform/WebServiceWorkerProviderClient.h
index b176bdcbb50d95e884b2716b388648ffbc32520a..4cf94e7e4778667a222d36301565a82d7da5e1fb 100644
--- a/public/platform/WebServiceWorkerProviderClient.h
+++ b/public/platform/WebServiceWorkerProviderClient.h
@@ -39,6 +39,8 @@ class WebServiceWorker;
 class WebServiceWorkerRegistration;
 class WebString;
 
+struct WebServiceWorkerClientInfo;
+
 // This class is the interface for embedders to talk to
 // ServiceWorkerContainer.
 class WebServiceWorkerProviderClient {
@@ -50,6 +52,7 @@ public:
     virtual void setReadyRegistration(WebServiceWorkerRegistration*) = 0;
 
     virtual void dispatchMessageEvent(const WebString& message, const WebMessagePortChannelArray&) = 0;
+    virtual bool getClientInfo(WebServiceWorkerClientInfo*) = 0;
 };
 
 } // namespace blink