FilePath: remove some functions that aren't really used.

base/file_path.cc

Index: base/file_path.cc
diff --git a/base/file_path.cc b/base/file_path.cc
index 0d0b40b400402272a2a06725d11b63d7629901a3..35361bef7594c5e2223343d46d4ec745edec3675 100644
--- a/base/file_path.cc
+++ b/base/file_path.cc
@@ -551,43 +551,26 @@ FilePath FilePath::FromWStringHack(const std::wstring& wstring) {
 }
 #endif
 
-// static.
-void FilePath::WriteStringTypeToPickle(Pickle* pickle,
-                                       const StringType& path) {
-#if defined(WCHAR_T_IS_UTF16)
-  pickle->WriteWString(path);
-#elif defined(WCHAR_T_IS_UTF32)
-  pickle->WriteString(path);
+void FilePath::WriteToPickle(Pickle* pickle) {
+#if defined(OS_WIN)
+  pickle->WriteString16(path_);
 #else
-  NOTIMPLEMENTED() << "Impossible encoding situation!";
+  pickle->WriteString(path_);
 #endif
 }
 
-// static.
-bool FilePath::ReadStringTypeFromPickle(Pickle* pickle, void** iter,
-                                        StringType* path) {
-#if defined(WCHAR_T_IS_UTF16)
-  if (!pickle->ReadWString(iter, path))
-    return false;
-#elif defined(WCHAR_T_IS_UTF32)
-  if (!pickle->ReadString(iter, path))
+bool FilePath::ReadFromPickle(Pickle* pickle, void** iter) {
+#if defined(OS_WIN)
+  if (!pickle->ReadString16(iter, &path_))
     return false;
 #else
-  NOTIMPLEMENTED() << "Impossible encoding situation!";
-  return false;
+  if (!pickle->ReadString(iter, &path_))
+    return false;
 #endif
 
   return true;
 }
 
-void FilePath::WriteToPickle(Pickle* pickle) {
-  WriteStringTypeToPickle(pickle, value());
-}
-
-bool FilePath::ReadFromPickle(Pickle* pickle, void** iter) {
-  return ReadStringTypeFromPickle(pickle, iter, &path_);
-}
-
 #if defined(OS_WIN)
 // Windows specific implementation of file string comparisons