LanguageState should be owned by TranslateManager

components/translate/core/browser/translate_driver.h

Index: components/translate/core/browser/translate_driver.h
diff --git a/components/translate/core/browser/translate_driver.h b/components/translate/core/browser/translate_driver.h
index 88bb50385390f036d535a59f401769372c493095..fb0eb52ea0f7b063354d79ed094666e6fd328da9 100644
--- a/components/translate/core/browser/translate_driver.h
+++ b/components/translate/core/browser/translate_driver.h
@@ -8,7 +8,6 @@
 #include <string>
 
 class GURL;
-class LanguageState;
 
 // Interface that allows Translate core code to interact with its driver (i.e.,
 // obtain information from it and give information to it). A concrete
@@ -24,9 +23,6 @@ class TranslateDriver {
   // Called when the page is "translated" state of the page changed.
   virtual void OnIsPageTranslatedChanged() = 0;
 
-  // Gets the LanguageState associated with the driver.
-  virtual LanguageState& GetLanguageState() = 0;
-
   // Translates the page contents from |source_lang| to |target_lang|.
   virtual void TranslatePage(const std::string& translate_script,
                              const std::string& source_lang,