IPC: change sync channel dispatch restriction to allow dispatch to other channels within the same "…

content/renderer/renderer_restrict_dispatch_group.h

Index: content/renderer/renderer_restrict_dispatch_group.h
diff --git a/content/renderer/renderer_restrict_dispatch_group.h b/content/renderer/renderer_restrict_dispatch_group.h
new file mode 100644
index 0000000000000000000000000000000000000000..708a9217dba63500c765a8855a602c06ad614db4
--- /dev/null
+++ b/content/renderer/renderer_restrict_dispatch_group.h
@@ -0,0 +1,25 @@
+// 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.
+
+#ifndef CONTENT_RENDERER_RESTRICT_DISPATCH_GROUP_H_
+#define CONTENT_RENDERER_RESTRICT_DISPATCH_GROUP_H_
+#pragma once
+
+#include "ipc/ipc_sync_channel.h"
+
+namespace content {
+
+// This represents all dispatch groups used in the renderer. Dispatch groups
+// allow channels to restrict in which case incoming messages can re-enter while
+// a synchronous message is sent on another channel. See
+// IPC::SyncChannel::SetRestrictDispatchChannelGroup.
+enum RendererRestrictDispatchGroup {
+  kRendererRestrictDispatchGroup_None =
+      IPC::SyncChannel::kRestrictDispatchGroup_None,
+  kRendererRestrictDispatchGroup_Pepper,
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_RESTRICT_DISPATCH_GROUP_H_