[Android] Adding Smart GO/NEXT feature in Chrome

third_party/WebKit/Source/core/page/FocusController.h

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 65 matching lines @@
                     InputDeviceCapabilities* source_capabilities = nullptr) {
     return AdvanceFocus(type, false, source_capabilities);
   }
   bool AdvanceFocusAcrossFrames(
       WebFocusType,
       RemoteFrame* from,
       LocalFrame* to,
       InputDeviceCapabilities* source_capabilities = nullptr);
   Element* FindFocusableElementInShadowHost(const Element& shadow_host);
 
+  Element* FindFocusableElement(WebFocusType, Element&);
   bool SetFocusedElement(Element*, Frame*, const FocusParams&);
   // |setFocusedElement| variant with SelectionBehaviorOnFocus::None,
   // |WebFocusTypeNone, and null InputDeviceCapabilities.
   bool SetFocusedElement(Element*, Frame*);
 
   void SetActive(bool);
   bool IsActive() const { return is_active_; }
 
   void SetFocused(bool);
   bool IsFocused() const { return is_focused_; }
 
   void RegisterFocusChangedObserver(FocusChangedObserver*);
 
   DECLARE_TRACE();
 
  private:
   explicit FocusController(Page*);
 
-  Element* FindFocusableElement(WebFocusType, Element&);
-
   bool AdvanceFocus(WebFocusType,
                     bool initial_focus,
                     InputDeviceCapabilities* source_capabilities = nullptr);
   bool AdvanceFocusDirectionally(WebFocusType);
   bool AdvanceFocusInDocumentOrder(
       LocalFrame*,
       Element* start,
       WebFocusType,
       bool initial_focus,
       InputDeviceCapabilities* source_capabilities);
@@ skipping 12 matching lines @@
   Member<Frame> focused_frame_;
   bool is_active_;
   bool is_focused_;
   bool is_changing_focused_frame_;
   HeapHashSet<WeakMember<FocusChangedObserver>> focus_changed_observers_;
 };
 
 }  // namespace blink
 
 #endif  // FocusController_h