Keep track of accessibility focus across windows.

components/test_runner/accessibility_controller.h

Index: components/test_runner/accessibility_controller.h
diff --git a/components/test_runner/accessibility_controller.h b/components/test_runner/accessibility_controller.h
index 7bc62aa9fc3793069971d0dce386f764749abc5b..376f7b08cd001fea9752dec17d70503d21834ea1 100644
--- a/components/test_runner/accessibility_controller.h
+++ b/components/test_runner/accessibility_controller.h
@@ -31,7 +31,6 @@ class AccessibilityController :
 
   void Reset();
   void Install(blink::WebFrame* frame);
-  void SetFocusedElement(const blink::WebAXObject&);
   bool ShouldLogAccessibilityEvents();
   void NotificationReceived(const blink::WebAXObject& target,
                             const std::string& notification_name);
@@ -56,9 +55,6 @@ class AccessibilityController :
   // If true, will log all accessibility notifications.
   bool log_accessibility_events_;
 
-  blink::WebAXObject focused_element_;
-  blink::WebAXObject root_element_;
-
   WebAXObjectProxyList elements_;
 
   v8::Persistent<v8::Function> notification_callback_;