Initial checkin of the out of process worker implementation....

chrome/common/render_messages_internal.h

 // Copyright (c) 2006-2008 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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <string>
 #include <vector>
@@ skipping 1178 matching lines @@
                               size_t, /* bytes requested */
                               IPC::Maybe<TransportDIB::Handle> /* DIB */)
 
   // Since the browser keeps handles to the allocated transport DIBs, this
   // message is sent to tell the browser that it may release them when the
   // renderer is finished with them.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_FreeTransportDIB,
                        TransportDIB::Id /* DIB id */)
 #endif
 
+  // A renderer sends this to the browser process when it wants to create a
+  // worker.  The browser will create the worker process if necessary, and
+  // will return the route id on success.  On error returns MSG_ROUTING_NONE.
+  IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_CreateDedicatedWorker,
+                              GURL /* url */,
+                              int /* route_id */)
+
+  // Wraps an IPC message that's destined to the worker on the renderer->browser
+  // hop.
+  IPC_MESSAGE_CONTROL1(ViewHostMsg_ForwardToWorker,
+                       IPC::Message /* message */)
+
 IPC_END_MESSAGES(ViewHost)