Move PathExists to base namespace.

chrome/installer/util/shell_util.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.
 //
 // This file defines functions that integrate Chrome in Windows shell. These
 // functions can be used by Chrome as well as Chrome installer. All of the
 // work is done by the local functions defined in anonymous namespace in
 // this class.
 
 #include "chrome/installer/util/shell_util.h"
@@ skipping 674 matching lines @@
                               const string16& chrome_exe,
                               const string16& suffix,
                               const string16& protocol) {
   // Only user-level installs prior to Windows 8 should need to elevate to
   // register.
   DCHECK(InstallUtil::IsPerUserInstall(chrome_exe.c_str()));
   DCHECK_LT(base::win::GetVersion(), base::win::VERSION_WIN8);
   base::FilePath exe_path =
       base::FilePath::FromWStringHack(chrome_exe).DirName()
           .Append(installer::kSetupExe);
-  if (!file_util::PathExists(exe_path)) {
+  if (!base::PathExists(exe_path)) {
     HKEY reg_root = InstallUtil::IsPerUserInstall(chrome_exe.c_str()) ?
         HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE;
     RegKey key(reg_root, dist->GetUninstallRegPath().c_str(), KEY_READ);
     string16 uninstall_string;
     key.ReadValue(installer::kUninstallStringField, &uninstall_string);
     CommandLine command_line = CommandLine::FromString(uninstall_string);
     exe_path = command_line.GetProgram();
   }
 
-  if (file_util::PathExists(exe_path)) {
+  if (base::PathExists(exe_path)) {
     CommandLine cmd(exe_path);
     cmd.AppendSwitchNative(installer::switches::kRegisterChromeBrowser,
                            chrome_exe);
     if (!suffix.empty()) {
       cmd.AppendSwitchNative(
           installer::switches::kRegisterChromeBrowserSuffix, suffix);
     }
 
     CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
     if (browser_command_line.HasSwitch(switches::kChromeFrame)) {
@@ skipping 715 matching lines @@
 
   string16 shortcut_name(ExtractShortcutNameFromProperties(dist, properties));
   system_shortcut_path = system_shortcut_path.Append(shortcut_name);
 
   base::FilePath* chosen_path;
   bool should_install_shortcut = true;
   if (properties.level == SYSTEM_LEVEL) {
     // Install the system-level shortcut if requested.
     chosen_path = &system_shortcut_path;
   } else if (operation != SHELL_SHORTCUT_CREATE_IF_NO_SYSTEM_LEVEL ||
-             !file_util::PathExists(system_shortcut_path)) {
+             !base::PathExists(system_shortcut_path)) {
     // Otherwise install the user-level shortcut, unless the system-level
     // variant of this shortcut is present on the machine and |operation| states
     // not to create a user-level shortcut in that case.
     if (!GetShortcutPath(location, dist, CURRENT_USER, &user_shortcut_path)) {
       NOTREACHED();
       return false;
     }
     user_shortcut_path = user_shortcut_path.Append(shortcut_name);
     chosen_path = &user_shortcut_path;
   } else {
@@ skipping 629 matching lines @@
     // are any left...).
     if (free_bits >= 8 && next_byte_index < size) {
       free_bits -= 8;
       bit_stream += bytes[next_byte_index++] << free_bits;
     }
   }
 
   DCHECK_EQ(ret.length(), encoded_length);
   return ret;
 }