Revert of Introduce the Blink NotificationService, move permission checks there

content/child/notifications/notification_manager.cc

 // Copyright 2014 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 "content/child/notifications/notification_manager.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 191 matching lines @@
     blink::WebNotificationDelegate* delegate) {
   for (auto& iter : active_page_notifications_) {
     if (iter.second != delegate)
       continue;
 
     active_page_notifications_.erase(iter.first);
     return;
   }
 }
 
+blink::mojom::blink::PermissionStatus NotificationManager::checkPermission(
+    const blink::WebSecurityOrigin& origin) {
+  blink::mojom::PermissionStatus permission_status =
+      blink::mojom::PermissionStatus::DENIED;
+
+  // TODO(mkwst): This is potentially doing the wrong thing with unique
+  // origins. Perhaps also 'file:', 'blob:' and 'filesystem:'. See
+  // https://crbug.com/490074 for detail.
+  thread_safe_sender_->Send(new PlatformNotificationHostMsg_CheckPermission(
+      blink::WebStringToGURL(origin.toString()), &permission_status));
+
+  return static_cast<blink::mojom::blink::PermissionStatus>(permission_status);
+}
+
 bool NotificationManager::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(NotificationManager, message)
     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidShow, OnDidShow);
     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidShowPersistent,
                         OnDidShowPersistent)
     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidClose, OnDidClose);
     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidClick, OnDidClick);
     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidGetNotifications,
                         OnDidGetNotifications)
@@ skipping 64 matching lines @@
 
     notifications[i] = web_notification_info;
   }
 
   callbacks->onSuccess(notifications);
 
   pending_get_notification_requests_.Remove(request_id);
 }
 
 }  // namespace content