Move PathExists to base namespace.

chrome/installer/util/logging_installer.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 <windows.h>
 
 #include "chrome/installer/util/logging_installer.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 41 matching lines @@
         int64 offset = log_size - kTruncatedInstallerLogFileSize;
         std::string old_log_data(kTruncatedInstallerLogFileSize, 0);
         int bytes_read = base::ReadPlatformFile(old_log_file,
                                                 offset,
                                                 &old_log_data[0],
                                                 kTruncatedInstallerLogFileSize);
         if (bytes_read > 0 &&
             (bytes_read == file_util::WriteFile(log_file,
                                                 &old_log_data[0],
                                                 bytes_read) ||
-             file_util::PathExists(log_file))) {
+             base::PathExists(log_file))) {
           result = LOGFILE_TRUNCATED;
         }
       }
     } else if (base::Delete(log_file, false)) {
       // Couldn't get sufficient access to the log file, optimistically try to
       // delete it.
       result = LOGFILE_DELETED;
     }
   }
 
@@ skipping 51 matching lines @@
   base::FilePath log_path;
   if (PathService::Get(base::DIR_TEMP, &log_path)) {
     log_path = log_path.Append(log_filename);
     return log_path;
   } else {
     return base::FilePath(log_filename);
   }
 }
 
 }  // namespace installer