win x86: a few trivial compile fixes when GYP_DEFINES=target_arch=ia32

test/win/win_child_process.cc

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 36 matching lines @@
   int num_args;
   wchar_t** args = CommandLineToArgvW(GetCommandLine(), &num_args);
   ScopedLocalFree scoped_args(args);  // Take ownership.
   if (!args) {
     PLOG(FATAL) << "CommandLineToArgvW";
     return false;
   }
 
   std::string switch_name_with_equals(switch_name);
   switch_name_with_equals += "=";
-  for (size_t i = 1; i < num_args; ++i) {
+  for (int i = 1; i < num_args; ++i) {
     const wchar_t* arg = args[i];
     std::string arg_as_utf8 = base::UTF16ToUTF8(arg);
     if (arg_as_utf8.compare(
             0, switch_name_with_equals.size(), switch_name_with_equals) == 0) {
       if (value)
         *value = arg_as_utf8.substr(switch_name_with_equals.size());
       return true;
     }
   }
 
@@ skipping 161 matching lines @@
 void WinChildProcess::CloseReadPipe() {
   pipe_read_.reset();
 }
 
 void WinChildProcess::CloseWritePipe() {
   pipe_write_.reset();
 }
 
 }  // namespace test
 }  // namespace crashpad