NaCl: Allow setting up multiple sockets for subprocess instead of just one

chrome/common/render_messages_internal.h

 // Copyright (c) 2010 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 <map>
 #include <string>
@@ skipping 1390 matching lines @@
   // A renderer sends this to the browser process to provide a synchronization
   // point for GPU operations, in particular to make sure the GPU channel has
   // been established.
   IPC_SYNC_MESSAGE_CONTROL0_0(ViewHostMsg_SynchronizeGpu)
 
   // A renderer sends this to the browser process when it wants to start
   // a new instance of the Native Client process. The browser will launch
   // the process and return a handle to an IMC channel.
   IPC_SYNC_MESSAGE_CONTROL2_3(ViewHostMsg_LaunchNaCl,
                               std::wstring /* url for the NaCl module */,
-                              int /* channel number */,
-                              nacl::FileDescriptor /* imc channel handle */,
+                              int /* socket count */,
+                              std::vector<nacl::FileDescriptor>
+                                  /* imc channel handles */,
                               base::ProcessHandle /* NaCl process handle */,
                               base::ProcessId /* NaCl process id */)
 
 #if defined(USE_X11)
   // A renderer sends this when it needs a browser-side widget for
   // hosting a windowed plugin. id is the XID of the plugin window, for which
   // the container is created.
   IPC_SYNC_MESSAGE_ROUTED1_0(ViewHostMsg_CreatePluginContainer,
                              gfx::PluginWindowHandle /* id */)
 
@@ skipping 1106 matching lines @@
   // Send the tree of accessibility data to the browser, where it's cached
   // in order to respond to OS accessibility queries immediately.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_AccessibilityTree,
                       webkit_glue::WebAccessibility)
 
   // Notifies the TabContents that the content being displayed is PDF.
   // This allows the browser to handle things such as zooming differently.
   IPC_MESSAGE_ROUTED0(ViewHostMsg_SetDisplayingPDFContent)
 
 IPC_END_MESSAGES(ViewHost)