Move LanguageState to the translate component

chrome/browser/tab_contents/language_state_observer.h

Index: chrome/browser/tab_contents/language_state_observer.h
diff --git a/chrome/browser/tab_contents/language_state_observer.h b/chrome/browser/tab_contents/language_state_observer.h
deleted file mode 100644
index d29affa8be85bce406de94e7762a8a5f610509c6..0000000000000000000000000000000000000000
--- a/chrome/browser/tab_contents/language_state_observer.h
+++ /dev/null
@@ -1,25 +0,0 @@
-// 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.
-
-#ifndef CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_
-#define CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_
-
-namespace content {
-class WebContents;
-}
-
-// The observer for the language state.
-class LanguageStateObserver {
- public:
-  // Handles when the value of IsPageTranslated is changed.
-  virtual void OnIsPageTranslatedChanged(content::WebContents* source) = 0;
-
-  // Handles when the value of translate_enabled is changed.
-  virtual void OnTranslateEnabledChanged(content::WebContents* source) = 0;
-
- protected:
-  virtual ~LanguageStateObserver() {}
-};
-
-#endif  // CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_