Move PathExists to base namespace.

chrome/common/extensions/extension_file_util.cc

Index: chrome/common/extensions/extension_file_util.cc
diff --git a/chrome/common/extensions/extension_file_util.cc b/chrome/common/extensions/extension_file_util.cc
index 188abc41cf9bfbb4a593fd9e17fd3a712ae9cc0b..37137fdaa530c197198c9c9b9e386fee4341476b 100644
--- a/chrome/common/extensions/extension_file_util.cc
+++ b/chrome/common/extensions/extension_file_util.cc
@@ -72,7 +72,7 @@ base::FilePath InstallExtension(const base::FilePath& unpacked_source_dir,
   base::FilePath version_dir;
 
   // Create the extension directory if it doesn't exist already.
-  if (!file_util::PathExists(extension_dir)) {
+  if (!base::PathExists(extension_dir)) {
     if (!file_util::CreateDirectory(extension_dir))
       return base::FilePath();
   }
@@ -99,7 +99,7 @@ base::FilePath InstallExtension(const base::FilePath& unpacked_source_dir,
   for (int i = 0; i < kMaxAttempts; ++i) {
     base::FilePath candidate = extension_dir.AppendASCII(
         base::StringPrintf("%s_%u", version.c_str(), i));
-    if (!file_util::PathExists(candidate)) {
+    if (!base::PathExists(candidate)) {
       version_dir = candidate;
       break;
     }
@@ -170,7 +170,7 @@ base::DictionaryValue* LoadManifest(const base::FilePath& extension_path,
                                     std::string* error) {
   base::FilePath manifest_path =
       extension_path.Append(extensions::kManifestFilename);
-  if (!file_util::PathExists(manifest_path)) {
+  if (!base::PathExists(manifest_path)) {
     *error = l10n_util::GetStringUTF8(IDS_EXTENSION_MANIFEST_UNREADABLE);
     return NULL;
   }
@@ -229,7 +229,7 @@ std::vector<base::FilePath> FindPrivateKeyFiles(
 
 bool ValidateFilePath(const base::FilePath& path) {
   int64 size = 0;
-  if (!file_util::PathExists(path) ||
+  if (!base::PathExists(path) ||
       !file_util::GetFileSize(path, &size) ||
       size == 0) {
     return false;
@@ -409,7 +409,7 @@ extensions::MessageBundle* LoadMessageBundle(
   error->clear();
   // Load locale information if available.
   base::FilePath locale_path = extension_path.Append(extensions::kLocaleFolder);
-  if (!file_util::PathExists(locale_path))
+  if (!base::PathExists(locale_path))
     return NULL;
 
   std::set<std::string> locales;
@@ -529,7 +529,7 @@ base::FilePath ExtensionResourceURLToFilePath(const GURL& url,
     return base::FilePath();
 
   base::FilePath path = root.AppendASCII(host).Append(relative_path);
-  if (!file_util::PathExists(path))
+  if (!base::PathExists(path))
     return base::FilePath();
   path = base::MakeAbsoluteFilePath(path);
   if (path.empty() || !root.IsParent(path))
@@ -548,7 +548,7 @@ base::FilePath GetInstallTempDir(const base::FilePath& extensions_dir) {
   // This guarantees it is on the same file system as the extension's eventual
   // install target.
   base::FilePath temp_path = extensions_dir.Append(kTempDirectoryName);
-  if (file_util::PathExists(temp_path)) {
+  if (base::PathExists(temp_path)) {
     if (!file_util::DirectoryExists(temp_path)) {
       DLOG(WARNING) << "Not a directory: " << temp_path.value();
       return base::FilePath();