Change NaCl IPC PPAPI proxy startup to support a NaCl-Browser process

ppapi/proxy/ppapi_messages.h

 // 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.
 
 // Multiply-included message header, no traditional include guard.
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 248 matching lines @@
 // These are from the browser to the plugin.
 // Loads the given plugin.
 IPC_MESSAGE_CONTROL1(PpapiMsg_LoadPlugin, FilePath /* path */)
 
 // Creates a channel to talk to a renderer. The plugin will respond with
 // PpapiHostMsg_ChannelCreated.
 IPC_MESSAGE_CONTROL2(PpapiMsg_CreateChannel,
                      int /* renderer_id */,
                      bool /* incognito */)
 
+// Creates a channel to talk to a renderer. This message is only used by the
+// NaCl IPC proxy. It is intercepted by NaClIPCAdapter, which creates the
+// actual channel and rewrites the message for the untrusted side.
+IPC_MESSAGE_CONTROL3(PpapiMsg_CreateNaClChannel,
+                     int /* renderer_id */,
+                     bool /* incognito */,
+                     ppapi::proxy::SerializedHandle /* channel_handle */)
+
 // Each plugin may be referenced by multiple renderers. We need the instance
 // IDs to be unique within a plugin, despite coming from different renderers,
 // and unique within a renderer, despite going to different plugins. This means
 // that neither the renderer nor the plugin can generate instance IDs without
 // consulting the other.
 //
 // We resolve this by having the renderer generate a unique instance ID inside
 // its process. It then asks the plugin to reserve that ID by sending this sync
 // message. If the plugin has not yet seen this ID, it will remember it as used
 // (to prevent a race condition if another renderer tries to then use the same
@@ skipping 1248 matching lines @@
                      std::string /* suggested_file_name */,
                      std::vector<std::string> /* accept_mime_types */)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_FileChooser_ShowReply,
                      std::vector<ppapi::PPB_FileRef_CreateInfo> /* files */)
 
 // Gamepad.
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Gamepad_Create)
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Gamepad_RequestMemory)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_Gamepad_SendMemory,
                      base::SharedMemoryHandle /* handle */)