NaCl: Remove getpid() calls from the PPAPI proxy

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

-// 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.
 
 #include "native_client/src/shared/ppapi_proxy/browser_ppp.h"
 
 #include <string.h>
 
 #include "native_client/src/include/nacl_scoped_ptr.h"
 #include "native_client/src/include/portability.h"
 #include "native_client/src/include/portability_process.h"
@@ skipping 78 matching lines @@
                 "could not construct callback services.\n");
     free(service);
     return PP_ERROR_FAILED;
   }
   // Export the service on the channel.
   main_channel_->server = service;
   char* service_string = const_cast<char*>(service->service_string);
   SetModuleIdForSrpcChannel(main_channel_, module_id);
   SetInstanceIdForSrpcChannel(main_channel_, plugin_->pp_instance());
   // Do the RPC.
-  int32_t browser_pid = static_cast<int32_t>(GETPID());
   int32_t pp_error;
   NaClSrpcError srpc_result =
       PppRpcClient::PPP_InitializeModule(main_channel_,
-                                         browser_pid,
                                          module_id,
                                          wrapper->desc(),
                                          service_string,
-                                         &plugin_pid_,
                                          &pp_error);
   DebugPrintf("PPP_InitializeModule: %s\n", NaClSrpcErrorString(srpc_result));
   is_nexe_alive_ = (srpc_result != NACL_SRPC_RESULT_INTERNAL);
   if (srpc_result != NACL_SRPC_RESULT_OK)
     return PP_ERROR_FAILED;
   DebugPrintf("PPP_InitializeModule: pp_error=%"NACL_PRId32"\n", pp_error);
   if (pp_error != PP_OK)
     return pp_error;
   const void* ppp_instance = GetPluginInterface(PPP_INSTANCE_INTERFACE);
   DebugPrintf("PPP_InitializeModule: ppp_instance=%p\n", ppp_instance);
@@ skipping 98 matching lines @@
 
 const void* BrowserPpp::GetPluginInterfaceSafe(const char* interface_name) {
   const void* ppp_interface = GetPluginInterface(interface_name);
   if (ppp_interface == NULL)
     DebugPrintf("PPB_GetInterface: %s not found\n", interface_name);
   CHECK(ppp_interface != NULL);
   return ppp_interface;
 }
 
 }  // namespace ppapi_proxy