Make DOMSelection cache Range

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

 /*
  * Copyright (C) 2011 Google Inc. All Rights Reserved.
  * Copyright (C) 2012 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
@@ skipping 70 matching lines @@
 
   void addImageMap(HTMLMapElement*);
   void removeImageMap(HTMLMapElement*);
   HTMLMapElement* getImageMap(const String& url) const;
 
   Element* elementFromPoint(int x, int y) const;
   Element* hitTestPoint(int x, int y, const HitTestRequest&) const;
   HeapVector<Member<Element>> elementsFromPoint(int x, int y) const;
   HeapVector<Member<Element>> elementsFromHitTestResult(HitTestResult&) const;
 
+  bool hasSelection() const;
   DOMSelection* getSelection() const;
 
   Element* retarget(const Element& target) const;
 
   // Find first anchor with the given name.
   // First searches for an element with the given ID, but if that fails, then
   // looks for an anchor with the given name. ID matching is always case
   // sensitive, but Anchor name matching is case sensitive in strict mode and
   // not case sensitive in quirks mode for historical compatibility reasons.
   Element* findAnchor(const String& name);
@@ skipping 71 matching lines @@
 
 HitTestResult hitTestInDocument(
     const Document*,
     int x,
     int y,
     const HitTestRequest& = HitTestRequest::ReadOnly | HitTestRequest::Active);
 
 }  // namespace blink
 
 #endif  // TreeScope_h