PPAPI/NaCl: Make NaClIPCAdapter transfer handles more generally

ppapi/proxy/serialized_var.cc

 // 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 "ppapi/proxy/serialized_var.h"
 
 #include "base/logging.h"
 #include "ipc/ipc_message_utils.h"
 #include "ppapi/proxy/dispatcher.h"
 #include "ppapi/proxy/interface_proxy.h"
@@ skipping 231 matching lines @@
 
   DCHECK_EQ(PP_VARTYPE_UNDEFINED, var_.type);
   switch (raw_var_data_->type) {
     case PP_VARTYPE_STRING: {
       var_ = StringVar::SwapValidatedUTF8StringIntoPPVar(
           &raw_var_data_->data);
       break;
     }
     case PP_VARTYPE_ARRAY_BUFFER: {
       var_ = PpapiGlobals::Get()->GetVarTracker()->MakeArrayBufferPPVar(
-          raw_var_data_->data.size(), raw_var_data_->data.data());
+          static_cast<uint32>(raw_var_data_->data.size()),
+          raw_var_data_->data.data());
       break;
     }
     default:
       NOTREACHED();
   }
   raw_var_data_.reset(NULL);
 }
 
 // SerializedVar ---------------------------------------------------------------
 
@@ skipping 267 matching lines @@
     const std::string& str) {
   inner_->ForceSetVarValueForTest(StringVar::StringToPPVar(str));
 }
 
 SerializedVarTestReader::SerializedVarTestReader(const SerializedVar& var)
     : SerializedVar(var) {
 }
 
 }  // namespace proxy
 }  // namespace ppapi