Fix AccessibilityExtensionLoader's handling of locked screen

chrome/browser/chromeos/accessibility/accessibility_manager.h

Index: chrome/browser/chromeos/accessibility/accessibility_manager.h
diff --git a/chrome/browser/chromeos/accessibility/accessibility_manager.h b/chrome/browser/chromeos/accessibility/accessibility_manager.h
index 87684cbe1449466f9987428bee65d6ee29581f9c..3da064d05d07337d46598ca0eb3a32b8089caf34 100644
--- a/chrome/browser/chromeos/accessibility/accessibility_manager.h
+++ b/chrome/browser/chromeos/accessibility/accessibility_manager.h
@@ -26,10 +26,6 @@
 #include "extensions/browser/extension_system.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
 
-namespace content {
-class RenderViewHost;
-}
-
 class Profile;
 
 namespace chromeos {
@@ -235,9 +231,6 @@ class AccessibilityManager
   // Initiates play of shutdown sound and returns it's duration.
   base::TimeDelta PlayShutdownSound();
 
-  // Injects ChromeVox scripts into given |render_view_host|.
-  void InjectChromeVox(content::RenderViewHost* render_view_host);
-
   // Register a callback to be notified when the status of an accessibility
   // option changes.
   std::unique_ptr<AccessibilityStatusSubscription> RegisterCallback(
@@ -386,8 +379,6 @@ class AccessibilityManager
 
   ash::AccessibilityNotificationVisibility spoken_feedback_notification_;
 
-  bool should_speak_chrome_vox_announcements_on_user_screen_;
-
   bool system_sounds_enabled_;
 
   AccessibilityStatusCallbackList callback_list_;