Bump English spellcheck dictionary versions and add tests

chrome/common/spellcheck_common.cc

 // Copyright (c) 2012 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/common/spellcheck_common.h"
 
 #include "base/file_path.h"
 
 namespace chrome {
 namespace spellcheck_common {
@@ skipping 87 matching lines @@
     {"pl-PL", "-1-3"},
     {"fr-FR", "-2-0"},  // 2-0 (2010): upgraded dictionaries.
     {"hu-HU", "-2-0"},
     {"ro-RO", "-2-0"},
     {"ru-RU", "-2-0"},
     {"bg-BG", "-2-0"},
     {"sr",    "-2-0"},
     {"uk-UA", "-2-0"},
     {"pt-BR", "-2-2"},  // 2-2 (Mar 2011): upgraded a dictionary.
     {"sh",    "-2-2"},  // 2-2 (Mar 2011): added a dictionary.
-    {"en-US", "-2-3"},  // 2-3 (May 2012): fixed affixes + more words.
-    {"en-CA", "-2-3"},
-    {"en-GB", "-2-3"},
-    {"en-AU", "-2-3"},
     {"ca-ES", "-2-3"},  // 2-3 (May 2012): upgraded a dictionary.
     {"sv-SE", "-2-3"},  // 2-3 (May 2012): upgraded a dictionary.
     {"af-ZA", "-2-3"},  // 2-3 (May 2012): added a dictionary.
     {"fo-FO", "-2-3"},  // 2-3 (May 2012): added a dictionary.
+    {"en-US", "-2-4"},  // 2-4 (October 2012): add more words.
+    {"en-CA", "-2-4"},
+    {"en-GB", "-2-4"},
+    {"en-AU", "-2-4"},
+
   };
 
   // Generate the bdict file name using default version string or special
   // version string, depending on the language.
   std::string language = GetSpellCheckLanguageRegion(input_language);
   std::string versioned_bdict_file_name(language + kDefaultVersionString +
                                         ".bdic");
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(special_version_string); ++i) {
     if (language == special_version_string[i].language) {
       versioned_bdict_file_name =
@@ skipping 47 matching lines @@
 
 void SpellCheckLanguages(std::vector<std::string>* languages) {
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(g_supported_spellchecker_languages);
        ++i) {
     languages->push_back(g_supported_spellchecker_languages[i].language);
   }
 }
 
 }  // namespace spellcheck_common
 }  // namespace chrome