[win/cros/lin] Update spellcheck menu strings according to UX.

chrome/browser/ui/webui/options/language_options_handler_common.cc

Index: chrome/browser/ui/webui/options/language_options_handler_common.cc
diff --git a/chrome/browser/ui/webui/options/language_options_handler_common.cc b/chrome/browser/ui/webui/options/language_options_handler_common.cc
index dfd89a187f77fc08c16a8ebba6556e93a82a0149..dc570cada29b7f5931c8459982598efcf27cbc28 100644
--- a/chrome/browser/ui/webui/options/language_options_handler_common.cc
+++ b/chrome/browser/ui/webui/options/language_options_handler_common.cc
@@ -80,8 +80,6 @@ void LanguageOptionsHandlerCommon::GetLocalizedValues(
       IDS_OPTIONS_SETTINGS_USE_THIS_FOR_SPELL_CHECKING },
     { "cannotBeUsedForSpellChecking",
       IDS_OPTIONS_SETTINGS_CANNOT_BE_USED_FOR_SPELL_CHECKING },
-    { "isUsedForSpellChecking",
-      IDS_OPTIONS_SETTINGS_IS_USED_FOR_SPELL_CHECKING },

[groby-ooo-7-16, 2016/02/18 03:06:36]

Uh, isn't that still used?
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/res...

[please use gerrit instead, 2016/02/18 16:54:30]

Bad naming in language_options.js. The variable "isUsedForSpellChecking" that
you see in there is a local that's declared a few lines above:

    var isUsedForSpellchecking = languageCode in this.spellCheckLanguages_;

      spellCheckLanguageCheckbox.languageCode = languageCode;
      spellCheckLanguageCheckbox.checked = isUsedForSpellchecking;

The variable defined here in language_options_handler_common.cc can be accessed
in JavaScript only through loadTimeData.getString('isUsedForSpellchecking') and
in HTML through <span i18n-content="isUsedForSpellchecking"></span>. These do
not exist after single language spellcheck was deprecated.

     { "enableSpellCheck", IDS_OPTIONS_ENABLE_SPELLCHECK },
     { "downloadingDictionary", IDS_OPTIONS_DICTIONARY_DOWNLOADING },
     { "downloadFailed", IDS_OPTIONS_DICTIONARY_DOWNLOAD_FAILED },