Selection API: collapse() should recreate an internal Range.

third_party/WebKit/Source/core/testing/Internals.idl

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 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.
@@ skipping 254 matching lines @@
     void forceReload(boolean endToEnd);
 
     DOMString getImageSourceURL(Element element);
 
     DOMString selectMenuListText(HTMLSelectElement select);
     boolean isSelectPopupVisible(Node node);
     boolean selectPopupItemStyleIsRtl(Node select, long itemIndex);
     long selectPopupItemStyleFontHeight(Node select, long itemIndex);
     void resetTypeAheadSession(HTMLSelectElement select);
 
+    readonly attribute Node? visibleSelectionAnchorNode;
+    readonly attribute unsigned long visibleSelectionAnchorOffset;
+    readonly attribute Node? visibleSelectionFocusNode;
+    readonly attribute unsigned long visibleSelectionFocusOffset;
     [RaisesException] ClientRect selectionBounds();
 
     boolean loseSharedGraphicsContext3D();
 
     [RaisesException] void forceCompositingUpdate(Document document);
 
     void setZoomFactor(float factor);
 
     [RaisesException] void setShouldRevealPassword(Element element, boolean reveal);
 
@@ skipping 75 matching lines @@
     DOMString getProgrammaticScrollAnimationState(Node node);
 
     ClientRect visualRect(Node node);
 
     OriginTrialsTest originTrialsTest();
 
     void crash();
 
     void setIsLowEndDevice(boolean isLowEndDevice);
 };