Keep track of accessibility focus across windows.

chrome/renderer/extensions/automation_internal_custom_bindings.h

 // Copyright 2014 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.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_AUTOMATION_INTERNAL_CUSTOM_BINDINGS_H_
 #define CHROME_RENDERER_EXTENSIONS_AUTOMATION_INTERNAL_CUSTOM_BINDINGS_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/common/extensions/api/automation.h"
@@ skipping 67 matching lines @@
   // removed from our cache.
   // Args: int ax_tree_id
   void DestroyAccessibilityTree(
       const v8::FunctionCallbackInfo<v8::Value>& args);
 
   void AddTreeChangeObserver(const v8::FunctionCallbackInfo<v8::Value>& args);
 
   void RemoveTreeChangeObserver(
       const v8::FunctionCallbackInfo<v8::Value>& args);
 
+  void GetFocus(const v8::FunctionCallbackInfo<v8::Value>& args);
+
   void RouteTreeIDFunction(const std::string& name,
                            void (*callback)(v8::Isolate* isolate,
                                             v8::ReturnValue<v8::Value> result,
                                             TreeCache* cache));
 
   void RouteNodeIDFunction(const std::string& name,
                            void (*callback)(v8::Isolate* isolate,
                                             v8::ReturnValue<v8::Value> result,
                                             TreeCache* cache,
                                             ui::AXNode* node));
@@ skipping 97 matching lines @@
   api::automation::TreeChangeObserverFilter
       tree_change_observer_overall_filter_;
   std::vector<int> deleted_node_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(AutomationInternalCustomBindings);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_AUTOMATION_INTERNAL_CUSTOM_BINDINGS_H_