Translate: Filter and record languages whose names Chrome doesn't show

chrome/browser/translate/translate_language_list.cc

 // Copyright 2013 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/browser/translate/translate_language_list.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/translate/translate_browser_metrics.h"
 #include "chrome/browser/translate/translate_url_util.h"
 #include "chrome/common/chrome_switches.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/load_flags.h"
 #include "net/base/url_util.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
+#include "ui/base/l10n/l10n_util.h"
 
 namespace {
 
 // The default list of languages the Google translation server supports.
 // We use this list until we receive the list that the server exposes.
 // For information, here is the list of languages that Chrome can be run in
 // but that the translation server does not support:
 // am Amharic
 // bn Bengali
 // gu Gujarati
@@ skipping 190 matching lines @@
   // and the other for target languages, we want to use the target languages.
   DictionaryValue* language_dict =
       static_cast<DictionaryValue*>(json_value.get());
   DictionaryValue* target_languages = NULL;
   if (!language_dict->GetDictionary(TranslateLanguageList::kTargetLanguagesKey,
                                     &target_languages) ||
       target_languages == NULL) {
     NOTREACHED();
     return;
   }
+
+  const std::string& locale = g_browser_process->GetApplicationLocale();
+
   // Now we can clear our current state...
   supported_languages_.clear();
   // ... and replace it with the values we just fetched from the server.
   for (DictionaryValue::Iterator iter(*target_languages);
        !iter.IsAtEnd();
        iter.Advance()) {
-    supported_languages_.insert(iter.key());
+    const std::string& lang = iter.key();
+    if (!l10n_util::IsLocaleNameTranslated(lang.c_str(), locale)) {
+      TranslateBrowserMetrics::ReportUndisplayableLanguage(lang);
+      continue;
+    }
+    supported_languages_.insert(lang);
   }
 }