[Payments] Implement openWindow for service worker based payment handler

third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.h

Index: third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.h
diff --git a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.h b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.h
index 43c4452e105d4e2eceee39aeaea7fd41a7f49055..9651c6afc0ef425f5ad9e18b3fa24a8d57dce306 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.h
+++ b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.h
@@ -69,7 +69,8 @@ class MODULES_EXPORT ServiceWorkerGlobalScopeClient
   virtual void GetClients(
       const WebServiceWorkerClientQueryOptions&,
       std::unique_ptr<WebServiceWorkerClientsCallbacks>) = 0;
-  virtual void OpenWindow(const WebURL&,
+  virtual void OpenWindow(const WebURL& redirect_url,

[zino, 2017/05/25 17:02:42]

It might be better to add a new method (e.g. OpenWindowForPaymentHandler) and
share the implementation with clients.openWindow. (If the redirect_url is not
used in clients.openWindow)

[please use gerrit instead, 2017/05/25 17:56:13]

+1

[gogerald1, 2017/05/29 22:13:16]

Done.

+                          const WebURL&,
                           std::unique_ptr<WebServiceWorkerClientCallbacks>) = 0;
   virtual void SetCachedMetadata(const WebURL&, const char*, size_t) = 0;
   virtual void ClearCachedMetadata(const WebURL&) = 0;