Move LanguageState to the translate component

components/translate/content/browser/language_state_observer.h

Index: components/translate/content/browser/language_state_observer.h
diff --git a/chrome/browser/tab_contents/language_state_observer.h b/components/translate/content/browser/language_state_observer.h
similarity index 73%
rename from chrome/browser/tab_contents/language_state_observer.h
rename to components/translate/content/browser/language_state_observer.h
index d29affa8be85bce406de94e7762a8a5f610509c6..8bc636226f7359f67a5d115e0ec94660b920d4f4 100644
--- a/chrome/browser/tab_contents/language_state_observer.h
+++ b/components/translate/content/browser/language_state_observer.h
@@ -2,8 +2,8 @@
 // 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_
+#ifndef COMPONENTS_TRANSLATE_CONTENT_BROWSER_LANGUAGE_STATE_OBSERVER_H_
+#define COMPONENTS_TRANSLATE_CONTENT_BROWSER_LANGUAGE_STATE_OBSERVER_H_
 
 namespace content {
 class WebContents;
@@ -22,4 +22,4 @@ class LanguageStateObserver {
   virtual ~LanguageStateObserver() {}
 };
 
-#endif  // CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_
+#endif  // COMPONENTS_TRANSLATE_CONTENT_BROWSER_LANGUAGE_STATE_OBSERVER_H_