diff -r 000000000000 -r 6474c204b198 intl/locale/src/nsLocale.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/intl/locale/src/nsLocale.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsString.h"
+#include "nsISupports.h"
+#include "nsILocale.h"
+#include "nsLocale.h"
+#include "nsMemory.h"
+#include "nsCRT.h"
+
+#define LOCALE_HASH_SIZE  0xFF
+
+
+/* nsILocale */
+NS_IMPL_ISUPPORTS(nsLocale, nsILocale)
+
+nsLocale::nsLocale(void)
+:  fHashtable(nullptr), fCategoryCount(0)
+{
+  fHashtable = PL_NewHashTable(LOCALE_HASH_SIZE,&nsLocale::Hash_HashFunction,
+                               &nsLocale::Hash_CompareNSString,
+                               &nsLocale::Hash_CompareNSString,
+                               nullptr, nullptr);
+  NS_ASSERTION(fHashtable, "nsLocale: failed to allocate PR_Hashtable");
+}
+
+nsLocale::~nsLocale(void)
+{
+  // enumerate all the entries with a delete function to
+  // safely delete all the keys and values
+  PL_HashTableEnumerateEntries(fHashtable, &nsLocale::Hash_EnumerateDelete,
+                               nullptr);
+
+  PL_HashTableDestroy(fHashtable);
+}
+
+NS_IMETHODIMP
+nsLocale::GetCategory(const nsAString& category, nsAString& result)
+{
+  const char16_t *value = (const char16_t*) 
+    PL_HashTableLookup(fHashtable, PromiseFlatString(category).get());
+
+  if (value)
+  {
+    result.Assign(value);
+    return NS_OK;
+  }
+
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsLocale::AddCategory(const nsAString &category, const nsAString &value)
+{
+  char16_t* newKey = ToNewUnicode(category);
+  if (!newKey)
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  char16_t* newValue = ToNewUnicode(value);
+  if (!newValue) {
+    nsMemory::Free(newKey);
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  if (!PL_HashTableAdd(fHashtable, newKey, newValue)) {
+    nsMemory::Free(newKey);
+    nsMemory::Free(newValue);
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  return NS_OK;
+}
+
+
+PLHashNumber
+nsLocale::Hash_HashFunction(const void* key)
+{
+  const char16_t* ptr = (const char16_t *) key;
+  PLHashNumber hash;
+
+  hash = (PLHashNumber)0;
+
+  while (*ptr)
+    hash += (PLHashNumber) *ptr++;
+
+  return hash;
+}
+
+
+int
+nsLocale::Hash_CompareNSString(const void* s1, const void* s2)
+{
+  return !nsCRT::strcmp((const char16_t *) s1, (const char16_t *) s2);
+}
+
+
+int
+nsLocale::Hash_EnumerateDelete(PLHashEntry *he, int hashIndex, void *arg)
+{
+  // delete an entry
+  nsMemory::Free((char16_t *)he->key);
+  nsMemory::Free((char16_t *)he->value);
+
+  return (HT_ENUMERATE_NEXT | HT_ENUMERATE_REMOVE);
+}
+