Revert wstring patch (r29078 and follow up commits). It is causing failures o...

base/file_util.cc

Index: base/file_util.cc
===================================================================
--- base/file_util.cc	(revision 29084)
+++ base/file_util.cc	(working copy)
@@ -322,6 +322,10 @@
   return ContentsEqual(FilePath::FromWStringHack(filename1),
                        FilePath::FromWStringHack(filename2));
 }
+bool CopyFile(const std::wstring& from_path, const std::wstring& to_path) {
+  return CopyFile(FilePath::FromWStringHack(from_path),
+                  FilePath::FromWStringHack(to_path));
+}
 bool CreateDirectory(const std::wstring& full_path) {
   return CreateDirectory(FilePath::FromWStringHack(full_path));
 }
@@ -341,6 +345,9 @@
 bool Delete(const std::wstring& path, bool recursive) {
   return Delete(FilePath::FromWStringHack(path), recursive);
 }
+bool DirectoryExists(const std::wstring& path) {
+  return DirectoryExists(FilePath::FromWStringHack(path));
+}
 bool EndsWithSeparator(std::wstring* path) {
   return EndsWithSeparator(FilePath::FromWStringHack(*path));
 }
@@ -382,9 +389,16 @@
   *path_str = path.ToWStringHack();
   return true;
 }
+bool Move(const std::wstring& from_path, const std::wstring& to_path) {
+  return Move(FilePath::FromWStringHack(from_path),
+              FilePath::FromWStringHack(to_path));
+}
 FILE* OpenFile(const std::wstring& filename, const char* mode) {
   return OpenFile(FilePath::FromWStringHack(filename), mode);
 }
+bool PathExists(const std::wstring& path) {
+  return PathExists(FilePath::FromWStringHack(path));
+}
 int ReadFile(const std::wstring& filename, char* data, int size) {
   return ReadFile(FilePath::FromWStringHack(filename), data, size);
 }