Add IPC Channel for new ManifestService.

ppapi/nacl_irt/manifest_service.cc

Index: ppapi/nacl_irt/manifest_service.cc
diff --git a/ppapi/nacl_irt/manifest_service.cc b/ppapi/nacl_irt/manifest_service.cc
new file mode 100644
index 0000000000000000000000000000000000000000..1f2b7147f1568af94dbabb33ecb9470eaee158c3
--- /dev/null
+++ b/ppapi/nacl_irt/manifest_service.cc
@@ -0,0 +1,29 @@
+// 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 "ppapi/nacl_irt/manifest_service.h"
+
+#include "base/message_loop/message_loop_proxy.h"
+#include "ipc/ipc_channel_handle.h"
+#include "ipc/ipc_channel_proxy.h"
+#include "ipc/ipc_sync_message_filter.h"
+
+namespace ppapi {
+
+ManifestService::ManifestService(
+    const IPC::ChannelHandle& handle,
+    scoped_refptr<base::MessageLoopProxy> io_message_loop,
+    base::WaitableEvent* shutdown_event) {
+  filter_ = new IPC::SyncMessageFilter(shutdown_event);
+  channel_.reset(new IPC::ChannelProxy(handle,
+                                       IPC::Channel::MODE_SERVER,
+                                       NULL, // Listener
+                                       io_message_loop));
+  channel_->AddFilter(filter_.get());
+}
+
+ManifestService::~ManifestService() {
+}
+
+}  // namespace ppapi