file_util: Move deprecated function UpOneDirectoryOrEmpty into an anonymous namespace.

This function is used in one place and is deprecated, so would be good to move
it there so no one can make other uses of it.

BUG=24672
TEST=trybots

Review URL: http://codereview.chromium.org/2809049

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@51963 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 10 deletions

diff --git a/base/file_util.cc b/base/file_util.cc
index bae6535..b611716 100644
--- a/base/file_util.cc
+++ b/base/file_util.cc
@@ -402,16 +402,6 @@ void UpOneDirectory(std::wstring* dir) {
   if (directory.value() != FilePath::kCurrentDirectory)
     *dir = directory.ToWStringHack();
 }
-void UpOneDirectoryOrEmpty(std::wstring* dir) {
-  FilePath path = FilePath::FromWStringHack(*dir);
-  FilePath directory = path.DirName();
-  // If there is no separator, we will get back kCurrentDirectory.
-  // In this case, clear dir.
-  if (directory == path || directory.value() == FilePath::kCurrentDirectory)
-    dir->clear();
-  else
-    *dir = directory.ToWStringHack();
-}
 int WriteFile(const std::wstring& filename, const char* data, int size) {
   return WriteFile(FilePath::FromWStringHack(filename), data, size);
 }