Implement a RenderFrame-less path for Web Notifications.

content/browser/notification_message_filter.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/browser/notification_message_filter.h"
+
+#include "content/common/platform_notification_messages.h"
+#include "content/public/browser/content_browser_client.h"
+#include "content/public/common/content_client.h"
+
+namespace content {
+
+NotificationMessageFilter::NotificationMessageFilter(
+    int process_id,
+    ResourceContext* resource_context)
+    : BrowserMessageFilter(PlatformNotificationMsgStart),
+      process_id_(process_id),
+      resource_context_(resource_context) {}
+
+NotificationMessageFilter::~NotificationMessageFilter() {}
+
+bool NotificationMessageFilter::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(NotificationMessageFilter, message)
+    IPC_MESSAGE_HANDLER(PlatformNotificationHostMsg_CheckPermission,
+                        OnCheckNotificationPermission)
+    IPC_MESSAGE_HANDLER(PlatformNotificationHostMsg_Show,
+                        OnShowPlatformNotification)
+    IPC_MESSAGE_HANDLER(PlatformNotificationHostMsg_Close,
+                        OnClosePlatformNotification)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+
+  return handled;
+}
+
+void NotificationMessageFilter::OverrideThreadForMessage(
+    const IPC::Message& message, content::BrowserThread::ID* thread) {
+  if (message.type() == PlatformNotificationHostMsg_Show::ID ||
+      message.type() == PlatformNotificationHostMsg_Close::ID)
+    *thread = BrowserThread::UI;
+}
+
+void NotificationMessageFilter::OnCheckNotificationPermission(
+    const GURL& origin, blink::WebNotificationPermission* permission) {
+  *permission =
+      GetContentClient()->browser()->CheckDesktopNotificationPermission(
+          origin,
+          resource_context_,
+          process_id_);
+}
+
+void NotificationMessageFilter::OnShowPlatformNotification(
+    int notification_id, const ShowDesktopNotificationHostMsgParams& params) {
+  // TODO(peter): Implement the DesktopNotificationDelegate.
+  NOTIMPLEMENTED();
+}
+
+void NotificationMessageFilter::OnClosePlatformNotification(
+    int notification_id) {
+  // TODO(peter): Implement the ability to close notifications.
+  NOTIMPLEMENTED();
+}
+
+}  // namespace content