Move PathExists to base namespace.

chrome/tools/crash_service/main.cc

 // Copyright (c) 2010 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/tools/crash_service/crash_service.h"
 
 #include <windows.h>
 #include <stdlib.h>
 #include <tchar.h>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 
 namespace {
 
 const wchar_t kStandardLogFile[] = L"operation_log.txt";
 
 bool GetCrashServiceDirectory(base::FilePath* dir) {
   base::FilePath temp_dir;
   if (!file_util::GetTempDir(&temp_dir))
     return false;
   temp_dir = temp_dir.Append(L"chrome_crashes");
-  if (!file_util::PathExists(temp_dir)) {
+  if (!base::PathExists(temp_dir)) {
     if (!file_util::CreateDirectory(temp_dir))
       return false;
   }
   *dir = temp_dir;
   return true;
 }
 
 }  // namespace.
 
 int __stdcall wWinMain(HINSTANCE instance, HINSTANCE, wchar_t* cmd_line,
@@ skipping 24 matching lines @@
     return 1;
 
   VLOG(1) << "ready to process crash requests";
 
   // Enter the message loop.
   int retv = crash_service.ProcessingLoop();
   // Time to exit.
   VLOG(1) << "session end. return code is " << retv;
   return retv;
 }