Added tab notification to accessibility_event_router_views.

chrome/browser/ui/views/tabs/tab_controller.h

Index: chrome/browser/ui/views/tabs/tab_controller.h
diff --git a/chrome/browser/ui/views/tabs/tab_controller.h b/chrome/browser/ui/views/tabs/tab_controller.h
index d20a178673dd12214ce7b9997e494d5d2129f23d..30f14d799aaa71567aa8e8742766e9854937b83f 100644
--- a/chrome/browser/ui/views/tabs/tab_controller.h
+++ b/chrome/browser/ui/views/tabs/tab_controller.h
@@ -89,6 +89,10 @@ class TabController {
   // Returns true if tabs painted in the rectangular light-bar style.
   virtual bool IsImmersiveStyle() const = 0;
 
+  // Adds private information to the tab's accessibility state.
+  virtual void UpdateTabAccessibilityState(const Tab* tab,
+                                        ui::AXViewState* state) = 0;
+
  protected:
   virtual ~TabController() {}
 };