PaymentApp: Implement GetAllManifests() in PaymentAppContext.

content/browser/payments/payment_app_database.cc

Index: content/browser/payments/payment_app_database.cc
diff --git a/content/browser/payments/payment_app_database.cc b/content/browser/payments/payment_app_database.cc
index 9f18a2dc242e44427a398d3af2cb6f1bdbb3122e..db0cf1cfbe33237f50d00a1c52a28c6dde56c5d8 100644
--- a/content/browser/payments/payment_app_database.cc
+++ b/content/browser/payments/payment_app_database.cc
@@ -104,6 +104,16 @@ void PaymentAppDatabase::ReadManifest(const GURL& scope,
                         weak_ptr_factory_.GetWeakPtr(), callback));
 }
 
+void PaymentAppDatabase::ReadAllManifests(
+    const ReadAllManifestsCallback& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  service_worker_context_->GetUserDataForAllRegistrations(
+      kPaymentAppManifestDataKey,
+      base::Bind(&PaymentAppDatabase::DidReadAllManifests,
+                 weak_ptr_factory_.GetWeakPtr(), callback));
+}
+
 void PaymentAppDatabase::DidFindRegistrationToWriteManifest(
     payments::mojom::PaymentAppManifestPtr manifest,
     const WriteManifestCallback& callback,
@@ -175,4 +185,28 @@ void PaymentAppDatabase::DidReadManifest(const ReadManifestCallback& callback,
                payments::mojom::PaymentAppManifestError::NONE);
 }
 
+void PaymentAppDatabase::DidReadAllManifests(
+    const ReadAllManifestsCallback& callback,
+    const std::vector<std::pair<int64_t, std::string>>& raw_data,
+    ServiceWorkerStatusCode status) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  if (status != SERVICE_WORKER_OK) {
+    callback.Run(Manifests());
+    return;
+  }
+
+  Manifests manifests;
+  for (auto& item_of_raw_data : raw_data) {
+    payments::mojom::PaymentAppManifestPtr manifest =
+        DeserializePaymentAppManifest(item_of_raw_data.second);
+    if (!manifest) {
+      continue;
+    }
+    manifests.push_back(
+        ManifestWithID(item_of_raw_data.first, std::move(manifest)));
+  }
+
+  callback.Run(std::move(manifests));
+}
+
 }  // namespace content