Fix element visibility check for validation bubbles and SELECT popups.

third_party/WebKit/Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003-2011, 2013, 2014 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 202 matching lines @@
     void setScrollTop(double);
     int scrollWidth();
     int scrollHeight();
 
     void scrollBy(double x, double y);
     virtual void scrollBy(const ScrollToOptions&);
     void scrollTo(double x, double y);
     virtual void scrollTo(const ScrollToOptions&);
 
     IntRect boundsInViewport() const;
+    // Returns an intersection rectangle of the bounds rectangle and the
+    // viewport rectangle, in the visual viewport coordinate. This function is
+    // used to show popups beside this element.
+    IntRect visibleBoundsInVisualViewport() const;
 
     ClientRectList* getClientRects();
     ClientRect* getBoundingClientRect();
 
     bool hasNonEmptyLayoutSize() const;
 
     const AtomicString& computedRole();
     String computedName();
 
     void didMoveToNewDocument(Document&) override;
@@ skipping 743 matching lines @@
     static T* create(const QualifiedName&, Document&)
 #define DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
     T* T::create(const QualifiedName& tagName, Document& document) \
     { \
         return new T(tagName, document); \
     }
 
 } // namespace blink
 
 #endif // Element_h