Turn NULL used as int to 0....

chrome/test/ui/ui_test.cc

 // Copyright (c) 2006-2009 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 "chrome/test/ui/ui_test.h"
 
 #include <set>
 #include <vector>
 
 #include "base/base_switches.h"
@@ skipping 402 matching lines @@
 #endif
     if (!base::WaitForSingleProcess(process_, timeout)) {
       // We need to force the browser to quit because it didn't quit fast
       // enough. Take no chance and kill every chrome processes.
       CleanupAppProcesses();
     }
   }
 
   // Don't forget to close the handle
   base::CloseProcessHandle(process_);
-  process_ = NULL;
+  process_ = base::kNullProcessHandle;
 }
 
 void UITest::AssertAppNotRunning(const std::wstring& error_message) {
   std::wstring final_error_message(error_message);
 
   int process_count = GetBrowserProcessCount();
   if (process_count > 0) {
     ChromeProcessList processes = GetRunningChromeProcesses(user_data_dir());
     final_error_message += L" Leftover PIDs: [";
     for (ChromeProcessList::const_iterator it = processes.begin();
@@ skipping 699 matching lines @@
 #else
   // TODO(port): above code is very Windows-specific; we need to
   // figure out and abstract out how we'll handle finding any existing
   // running process, etc. on other platforms.
   NOTIMPLEMENTED();
 #endif
   }
 
   return true;
 }