srpcgen: Use 'const char*' for string parameters

ppapi/native_client/src/shared/ppapi_proxy/plugin_ppp_rpc_server.cc

Index: ppapi/native_client/src/shared/ppapi_proxy/plugin_ppp_rpc_server.cc
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppp_rpc_server.cc b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppp_rpc_server.cc
index 71837968468b30859e1b08869c4406892c7ec263..7006a05063b9731f8009e0d9ee2b1ff93a5040c3 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppp_rpc_server.cc
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppp_rpc_server.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 //
@@ -95,7 +95,7 @@ void PppRpcServer::PPP_InitializeModule(
     int32_t pid,
     PP_Module module,
     NaClSrpcImcDescType upcall_channel_desc,
-    char* service_description,
+    const char* service_description,
     int32_t* nacl_pid,
     int32_t* success) {
   NaClSrpcClosureRunner runner(done);
@@ -141,7 +141,7 @@ void PppRpcServer::PPP_ShutdownModule(NaClSrpcRpc* rpc,
 
 void PppRpcServer::PPP_GetInterface(NaClSrpcRpc* rpc,
                                     NaClSrpcClosure* done,
-                                    char* interface_name,
+                                    const char* interface_name,
                                     int32_t* exports_interface_name) {
   NaClSrpcClosureRunner runner(done);
   rpc->result = NACL_SRPC_RESULT_APP_ERROR;