[Payments] Implement openWindow for service worker based payment handler

third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerClients.cpp

Index: third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerClients.cpp
diff --git a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerClients.cpp b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerClients.cpp
index ee7a500cb2535666ff10a57600bc71332f9a3560..e63b41463d1022e40464dcf82314e7c71cd3a981 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerClients.cpp
+++ b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerClients.cpp
@@ -160,6 +160,12 @@ ScriptPromise ServiceWorkerClients::claim(ScriptState* script_state) {
 
 ScriptPromise ServiceWorkerClients::openWindow(ScriptState* script_state,
                                                const String& url) {
+  return openWindow(script_state, String(), url);
+}
+
+ScriptPromise ServiceWorkerClients::openWindow(ScriptState* script_state,
+                                               const String& redirect_url,
+                                               const String& url) {
   ScriptPromiseResolver* resolver = ScriptPromiseResolver::Create(script_state);
   ScriptPromise promise = resolver->Promise();
   ExecutionContext* context = ExecutionContext::From(script_state);
@@ -186,7 +192,8 @@ ScriptPromise ServiceWorkerClients::openWindow(ScriptState* script_state,
   context->ConsumeWindowInteraction();
 
   ServiceWorkerGlobalScopeClient::From(context)->OpenWindow(
-      parsed_url, WTF::MakeUnique<NavigateClientCallback>(resolver));
+      KURL(kParsedURLString, redirect_url), parsed_url,
+      WTF::MakeUnique<NavigateClientCallback>(resolver));
   return promise;
 }