LanguageState should be owned by TranslateManager

components/translate/content/browser/content_translate_driver.cc

Index: components/translate/content/browser/content_translate_driver.cc
diff --git a/components/translate/content/browser/content_translate_driver.cc b/components/translate/content/browser/content_translate_driver.cc
index ffebdc733898a60083f20bd8977bc52fd6c14099..60757dbbcffb4a98457ed362cd153b3a1adc96c7 100644
--- a/components/translate/content/browser/content_translate_driver.cc
+++ b/components/translate/content/browser/content_translate_driver.cc
@@ -8,7 +8,6 @@
 #include "components/translate/content/common/translate_messages.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/navigation_controller.h"
-#include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/page_navigator.h"
 #include "content/public/browser/render_view_host.h"
@@ -19,22 +18,12 @@
 ContentTranslateDriver::ContentTranslateDriver(
     content::NavigationController* nav_controller)
     : navigation_controller_(nav_controller),
-      language_state_(this),
       observer_(NULL) {
   DCHECK(navigation_controller_);
 }
 
 ContentTranslateDriver::~ContentTranslateDriver() {}
 
-void ContentTranslateDriver::DidNavigate(
-    const content::LoadCommittedDetails& details) {
-  const bool reload =
-      details.entry->GetTransitionType() == content::PAGE_TRANSITION_RELOAD ||
-      details.type == content::NAVIGATION_TYPE_SAME_PAGE;
-  language_state_.DidNavigate(
-      details.is_in_page, details.is_main_frame, reload);
-}
-
 // TranslateDriver methods
 
 bool ContentTranslateDriver::IsLinkNavigation() {
@@ -59,10 +48,6 @@ void ContentTranslateDriver::OnIsPageTranslatedChanged() {
   }
 }
 
-LanguageState& ContentTranslateDriver::GetLanguageState() {
-  return language_state_;
-}
-
 void ContentTranslateDriver::TranslatePage(const std::string& translate_script,
                                            const std::string& source_lang,
                                            const std::string& target_lang) {