Move IsStringUTF8/ASCII to base namespace

chrome/browser/extensions/extension_garbage_collector.cc

 // Copyright 2014 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/browser/extensions/extension_garbage_collector.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
 #include "base/logging.h"
@@ skipping 36 matching lines @@
   base::FilePath basename = path.BaseName();
   // Clean up temporary files left if Chrome crashed or quit in the middle
   // of an extension install.
   if (basename.value() == file_util::kTempDirectoryName) {
     base::DeleteFile(path, true);  // Recursive.
     return;
   }
 
   // Parse directory name as a potential extension ID.
   std::string extension_id;
-  if (IsStringASCII(basename.value())) {
+  if (base::IsStringASCII(basename.value())) {
     extension_id = base::UTF16ToASCII(basename.LossyDisplayName());
     if (!Extension::IdIsValid(extension_id))
       extension_id.clear();
   }
 
   // Delete directories that aren't valid IDs.
   if (extension_id.empty()) {
     base::DeleteFile(path, true);  // Recursive.
     return;
   }
@@ skipping 203 matching lines @@
     // accounting.
     NOTREACHED();
 
     // Don't let the count go negative to avoid garbage collecting when
     // an install is actually in progress.
     crx_installs_in_progress_ = 0;
   }
 }
 
 }  // namespace extensions