Introduce a new API to handle native notification clicks

chrome/browser/notifications/persistent_notification_handler.cc

Index: chrome/browser/notifications/persistent_notification_handler.cc
diff --git a/chrome/browser/notifications/persistent_notification_handler.cc b/chrome/browser/notifications/persistent_notification_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..92c5dadad5142a74d8b94d324170a6097b867066
--- /dev/null
+++ b/chrome/browser/notifications/persistent_notification_handler.cc
@@ -0,0 +1,61 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/notifications/persistent_notification_handler.h"
+
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "chrome/browser/notifications/platform_notification_service_impl.h"
+#include "chrome/browser/profiles/profile.h"
+
+PersistentNotificationHandler::PersistentNotificationHandler() {}
+PersistentNotificationHandler::~PersistentNotificationHandler() {}
+
+void PersistentNotificationHandler::HandleNotificationOperation(
+    notification_operation_common::NotificationOperation operation,
+    Profile* profile,
+    const std::string& origin,
+    const std::string& notification_id,
+    int action_index) {
+  GURL notification_origin(origin);
+  int64_t persistent_notification_id;
+  if (!base::StringToInt64(notification_id, &persistent_notification_id)) {
+    LOG(ERROR) << "Unable to convert notification ID: " << notification_id
+               << " to integer.";
+    return;
+  }
+
+  switch (operation) {
+    case notification_operation_common::NOTIFICATION_CLICK:
+      PlatformNotificationServiceImpl::GetInstance()
+          ->OnPersistentNotificationClick(profile, persistent_notification_id,
+                                          notification_origin, action_index);
+      break;
+    case notification_operation_common::NOTIFICATION_CLOSE:
+      PlatformNotificationServiceImpl::GetInstance()
+          ->OnPersistentNotificationClose(profile, persistent_notification_id,
+                                          notification_origin, true);
+      break;
+    case notification_operation_common::NOTIFICATION_SETTINGS:
+      notification_operation_common::OpenNotificationSettings(profile);
+      break;
+  }
+}
+
+void PersistentNotificationHandler::CloseNotification(
+    Profile* profile,
+    const std::string& notification_id) {
+  // Nothing to do here since there is no state kept.
+}
+
+void PersistentNotificationHandler::RegisterNotification(
+    const std::string& notification_id,
+    std::unique_ptr<Notification> notification) {
+  // Nothing to do here since there is no state kept.
+}
+
+notification_operation_common::NotificationHandlerType
+PersistentNotificationHandler::NotificationType() {
+  return notification_operation_common::PERSISTENT_NOTIFICATION;
+}