Add an IPC channel between the NaCl loader process and the renderer.

content/renderer/pepper/pepper_plugin_delegate_impl.h

Index: content/renderer/pepper/pepper_plugin_delegate_impl.h
===================================================================
--- content/renderer/pepper/pepper_plugin_delegate_impl.h	(revision 136022)
+++ content/renderer/pepper/pepper_plugin_delegate_impl.h	(working copy)
@@ -151,6 +151,13 @@
   // Notification that a mouse event has arrived at the render view.
   void WillHandleMouseEvent();
 
+  // Creates the renderer side of an out-of-process Pepper plugin's IPC proxy.
+  bool CreatePepperHostDispatcher(
+      const FilePath& plugin_path,
+      int plugin_child_id,
+      base::ProcessHandle plugin_process_handle,
+      const IPC::ChannelHandle& channel_handle);
+
   // PluginDelegate implementation.
   virtual void PluginFocusChanged(webkit::ppapi::PluginInstance* instance,
                                   bool focused) OVERRIDE;