Disable translate when there is no API key

components/translate/core/browser/translate_browser_metrics.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_BROWSER_METRICS_H_
 #define COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_BROWSER_METRICS_H_
 
 #include <string>
 
 namespace translate {
@@ skipping 21 matching lines @@
   INITIATION_STATUS_DISABLED_BY_SWITCH,
   INITIATION_STATUS_DISABLED_BY_CONFIG,
   INITIATION_STATUS_LANGUAGE_IS_NOT_SUPPORTED,
   INITIATION_STATUS_URL_IS_NOT_SUPPORTED,
   INITIATION_STATUS_SIMILAR_LANGUAGES,
   INITIATION_STATUS_ACCEPT_LANGUAGES,
   INITIATION_STATUS_AUTO_BY_CONFIG,
   INITIATION_STATUS_AUTO_BY_LINK,
   INITIATION_STATUS_SHOW_INFOBAR,
   INITIATION_STATUS_MIME_TYPE_IS_NOT_SUPPORTED,
+  INITIATION_STATUS_DISABLED_BY_KEY,
   // Insert new items here.
   INITIATION_STATUS_MAX,
 };
 
 // Called when Chrome Translate is initiated to report a reason of the next
 // browser action.
 void ReportInitiationStatus(InitiationStatusType type);
 
 // Called when Chrome opens the URL so that the user sends an error feedback.
 void ReportLanguageDetectionError();
 
 void ReportLocalesOnDisabledByPrefs(const std::string& locale);
 
 // Called when Chrome Translate server sends the language list which includes
 // a undisplayable language in the user's locale.
 void ReportUndisplayableLanguage(const std::string& language);
 
 void ReportUnsupportedLanguageAtInitiation(const std::string& language);
 
 // Provides UMA entry names for unit tests.
 const char* GetMetricsName(MetricsNameIndex index);
 
 }  // namespace TranslateBrowserMetrics
 
 }  // namespace translate
 
 #endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_BROWSER_METRICS_H_