Move PathExists to base namespace.

win8/delegate_execute/command_execute_impl.cc

Index: win8/delegate_execute/command_execute_impl.cc
diff --git a/win8/delegate_execute/command_execute_impl.cc b/win8/delegate_execute/command_execute_impl.cc
index 03fb4daa9ab73ae9ca56024031bf60d8d6aaacec..4d28119bd1474848d9cff8883ddcdd3cd3deeec9 100644
--- a/win8/delegate_execute/command_execute_impl.cc
+++ b/win8/delegate_execute/command_execute_impl.cc
@@ -70,7 +70,7 @@ bool LaunchChromeBrowserProcess() {
       delegate_exe_path.DirName()
                        .DirName()
                        .Append(chrome::kBrowserProcessExecutableName);
-  if (!file_util::PathExists(chrome_exe_path)) {
+  if (!base::PathExists(chrome_exe_path)) {
     // Try looking in the current directory if we couldn't find it one up in
     // order to support developer installs.
     chrome_exe_path =
@@ -78,7 +78,7 @@ bool LaunchChromeBrowserProcess() {
                          .Append(chrome::kBrowserProcessExecutableName);
   }
 
-  if (!file_util::PathExists(chrome_exe_path)) {
+  if (!base::PathExists(chrome_exe_path)) {
     AtlTrace("Could not locate chrome.exe at: %ls\n",
              chrome_exe_path.value().c_str());
     return false;
@@ -392,9 +392,9 @@ bool CommandExecuteImpl::FindChromeExe(base::FilePath* chrome_exe) {
   }
 
   *chrome_exe = dir_exe.DirName().Append(chrome::kBrowserProcessExecutableName);
-  if (!file_util::PathExists(*chrome_exe)) {
+  if (!base::PathExists(*chrome_exe)) {
     *chrome_exe = dir_exe.Append(chrome::kBrowserProcessExecutableName);
-    if (!file_util::PathExists(*chrome_exe)) {
+    if (!base::PathExists(*chrome_exe)) {
       AtlTrace("Failed to find chrome exe file\n");
       return false;
     }