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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_
      6 #define CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_
      7 
      8 namespace content {
      9 class WebContents;
     10 }
     11 
     12 // The observer for the language state.
     13 class LanguageStateObserver {
     14  public:
     15   // Handles when the value of IsPageTranslated is changed.
     16   virtual void OnIsPageTranslatedChanged(content::WebContents* source) = 0;
     17 
     18   // Handles when the value of translate_enabled is changed.
     19   virtual void OnTranslateEnabledChanged(content::WebContents* source) = 0;
     20 
     21  protected:
     22   virtual ~LanguageStateObserver() {}
     23 };
     24 
     25 #endif  // CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_
     26