Chromium-side plumbing for ServiceWorker -> Document postMessage (2/3)

content/browser/service_worker/service_worker_provider_host.cc

 // Copyright 2013 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/service_worker/service_worker_provider_host.h"
 
 #include "base/stl_util.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_context_request_handler.h"
 #include "content/browser/service_worker/service_worker_controllee_request_handler.h"
@@ skipping 100 matching lines @@
   }
   if (ServiceWorkerUtils::IsMainResourceType(resource_type) ||
       active_version()) {
     return scoped_ptr<ServiceWorkerRequestHandler>(
         new ServiceWorkerControlleeRequestHandler(
             context_, AsWeakPtr(), resource_type));
   }
   return scoped_ptr<ServiceWorkerRequestHandler>();
 }
 
+void ServiceWorkerProviderHost::PostMessage(
+    const base::string16& message,
+    const std::vector<int>& sent_message_port_ids) {
+  if (!dispatcher_host_)
+    return;  // Could be NULL in some tests.
+
+  std::vector<int> new_routing_ids;
+  dispatcher_host_->UpdateMessagePorts(sent_message_port_ids, &new_routing_ids);
+
+  dispatcher_host_->Send(
+      new ServiceWorkerMsg_MessageToDocument(
+          kDocumentMainThreadId, provider_id(),
+          message,
+          sent_message_port_ids,
+          new_routing_ids));
+}
+
 }  // namespace content