PaymentApp: Implement InvokePaymentApp() in browser side.

content/browser/service_worker/service_worker_context_wrapper.cc

Index: content/browser/service_worker/service_worker_context_wrapper.cc
diff --git a/content/browser/service_worker/service_worker_context_wrapper.cc b/content/browser/service_worker/service_worker_context_wrapper.cc
index 6c5881189fa43ed89a803e5713a44b2945f2cf9e..69ffa22cbfea8504f31ea41c8e37a9f4f9ebc2a3 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.cc
+++ b/content/browser/service_worker/service_worker_context_wrapper.cc
@@ -711,6 +711,21 @@ void ServiceWorkerContextWrapper::FindReadyRegistrationForId(
                  this, callback));
 }
 
+void ServiceWorkerContextWrapper::FindReadyRegistrationForIdOnly(
+    int64_t registration_id,
+    const FindRegistrationCallback& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  if (!context_core_) {
+    // FindRegistrationForIdOnly() can run the callback synchronously.
+    callback.Run(SERVICE_WORKER_ERROR_ABORT, nullptr);
+    return;
+  }
+  context_core_->storage()->FindRegistrationForIdOnly(
+      registration_id,
+      base::Bind(&ServiceWorkerContextWrapper::DidFindRegistrationForFindReady,
+                 this, callback));
+}
+
 void ServiceWorkerContextWrapper::DidFindRegistrationForFindReady(
     const FindRegistrationCallback& callback,
     ServiceWorkerStatusCode status,