Add skeleton implementation of ExtensionPushMessagingEventRouter.

chrome/browser/extensions/api/push_messaging/push_messaging_api.cc

+// Copyright (c) 2012 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/extensions/api/push_messaging/push_messaging_api.h"
+
+#include "base/bind.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/event_names.h"
+#include "chrome/browser/extensions/event_router.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/extensions/api/experimental_push_messaging.h"
+#include "content/public/browser/browser_thread.h"
+#include "googleurl/src/gurl.h"
+
+namespace extensions {
+
+namespace glue = extensions::api::experimental_push_messaging;
+
+PushMessagingEventRouter::PushMessagingEventRouter(Profile* profile)
+    : profile_(profile) {
+}
+
+PushMessagingEventRouter::~PushMessagingEventRouter() {}
+
+void PushMessagingEventRouter::Init() {
+  // TODO(dcheng): Add hooks into InvalidationHandler when landed.
+}
+
+void PushMessagingEventRouter::OnMessage(const std::string& extension_id,
+                                         int subchannel,
+                                         const std::string& payload) {
+  glue::Message message;
+  message.subchannel_id = subchannel;
+  message.payload = payload;
+
+  scoped_ptr<base::Value> parameters(glue::OnMessage::Create(message));
+  profile_->GetExtensionEventRouter()->DispatchEventToExtension(
+      extension_id,
+      event_names::kOnPushMessage,
+      *parameters.get(),
+      profile_,
+      GURL());
+}
+
+}  // namespace extensions