Editing: Make the |EditingState*| argument of CompositeEditCommand::insertNodeAt mandatory.

third_party/WebKit/Source/core/editing/commands/InsertLineBreakCommand.cpp

 /*
  * Copyright (C) 2005, 2006 Apple Computer, 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 134 matching lines @@
         if (!isRenderedCharacter(endingPosition)) {
             Position positionBeforeTextNode(positionInParentBeforeNode(*textNode));
             // Clear out all whitespace and insert one non-breaking space
             deleteInsignificantTextDownstream(endingPosition);
             ASSERT(!textNode->layoutObject() || textNode->layoutObject()->style()->collapseWhiteSpace());
             // Deleting insignificant whitespace will remove textNode if it contains nothing but insignificant whitespace.
             if (textNode->inDocument()) {
                 insertTextIntoNode(textNode, 0, nonBreakingSpaceString());
             } else {
                 RefPtrWillBeRawPtr<Text> nbspNode = document().createTextNode(nonBreakingSpaceString());
-                insertNodeAt(nbspNode.get(), positionBeforeTextNode);
+                insertNodeAt(nbspNode.get(), positionBeforeTextNode, editingState);
+                if (editingState->isAborted())
+                    return;
                 endingPosition = firstPositionInNode(nbspNode.get());
             }
         }
 
         setEndingSelection(VisibleSelection(endingPosition, TextAffinity::Downstream, endingSelection().isDirectional()));
     }
 
     // Handle the case where there is a typing style.
 
     RefPtrWillBeRawPtr<EditingStyle> typingStyle = document().frame()->selection().typingStyle();
@@ skipping 12 matching lines @@
         // before the line break (if the line break is at the end of a block it isn't selectable).
         // So, this next call sets the endingSelection() to a caret just after the line break
         // that we inserted, or just before it if it's at the end of a block.
         setEndingSelection(endingSelection().visibleEnd());
     }
 
     rebalanceWhitespace();
 }
 
 } // namespace blink