Remove PP_Module from parameters for PPB_Var.VarFromUtf8.

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

 // Copyright (c) 2011 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_selection.h"
 
 // Include file order cannot be observed because ppp_instance declares a
 // structure return type that causes an error on Windows.
 // TODO(sehr, brettw): fix the return types and include order in PPAPI.
 #include "ppapi/c/pp_instance.h"
@@ skipping 23 matching lines @@
           instance,
           static_cast<int32_t>(html),
           &text_size,
           text_bytes.get());
 
   DebugPrintf("PPP_Selection_Dev::GetSelectedText: %s\n",
               NaClSrpcErrorString(srpc_result));
 
   PP_Var selected_text = PP_MakeUndefined();
   if (srpc_result == NACL_SRPC_RESULT_OK) {
-    (void) DeserializeTo(
-        channel, text_bytes.get(), text_size, 1, &selected_text);
+    (void) DeserializeTo(text_bytes.get(), text_size, 1, &selected_text);
   }
   return selected_text;
 }
 
 }  // namespace
 
 const PPP_Selection_Dev* BrowserSelection::GetInterface() {
   static const PPP_Selection_Dev selection_interface = {
     GetSelectedText
   };
   return &selection_interface;
 }
 
 }  // namespace ppapi_proxy