Allow the NaCl IPC proxy to support multiple instances.

webkit/plugins/ppapi/plugin_module.h

Index: webkit/plugins/ppapi/plugin_module.h
===================================================================
--- webkit/plugins/ppapi/plugin_module.h	(revision 154817)
+++ webkit/plugins/ppapi/plugin_module.h	(working copy)
@@ -105,7 +105,12 @@
   // ownership of the given pointer, even in the failure case.
   void InitAsProxied(PluginDelegate::OutOfProcessProxy* out_of_process_proxy);
 
-  // Initializes this module for the given NaCl proxy. This takes
+  // Creates a new module for a NaCl instance that will be using the IPC proxy.
+  // We can't use the existing module, or new instances of the plugin can't
+  // be created.
+  scoped_refptr<PluginModule> CreateModuleForNaClInstance();
+
+  // Initializes the NaCl module for the given out of process proxy. This takes
   // ownership of the given pointer, even in the failure case.
   void InitAsProxiedNaCl(
       scoped_ptr<PluginDelegate::OutOfProcessProxy> out_of_process_proxy,
@@ -234,8 +239,6 @@
 
   PP_Bool (*reserve_instance_id_)(PP_Module, PP_Instance);
 
-  bool nacl_ipc_proxy_;
-
   DISALLOW_COPY_AND_ASSIGN(PluginModule);
 };