Added tab notification to accessibility_event_router_views.

chrome/browser/ui/views/tabs/tab_strip.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
 
 #if defined(OS_WIN)
 #include <windowsx.h>
 #endif
 
@@ skipping 1168 matching lines @@
       clip->SetRect(x, 0, tab_bounds.width() - x, tab_bounds.height());
     }
   }
   return true;
 }
 
 bool TabStrip::IsImmersiveStyle() const {
   return immersive_style_;
 }
 
+void TabStrip::UpdateTabAccessibilityState(const Tab* tab,
+                                           ui::AXViewState* state) {
+  state->count = tab_count();
+  state->index = GetModelIndexOfTab(tab);
+}
+
 void TabStrip::MouseMovedOutOfHost() {
   ResizeLayoutTabs();
   if (reset_to_shrink_on_exit_) {
     reset_to_shrink_on_exit_ = false;
     SetStackedLayout(false);
     controller_->StackedLayoutMaybeChanged();
   }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ skipping 1519 matching lines @@
           ConvertPointToViewAndGetEventHandler(this, newtab_button_, point);
       if (view)
         return view;
     }
     Tab* tab = FindTabForEvent(point);
     if (tab)
       return ConvertPointToViewAndGetEventHandler(this, tab, point);
   }
   return this;
 }