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

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

 /*
  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009, 2010, 2011 Google 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 1192 matching lines @@
 
     // Scripts specified in javascript protocol may remove |enclosingBlockOfInsertionPos|
     // during insertion, e.g. <iframe src="javascript:...">
     if (enclosingBlockOfInsertionPos && !enclosingBlockOfInsertionPos->inDocument())
         enclosingBlockOfInsertionPos = nullptr;
 
     VisiblePosition startOfInsertedContent = createVisiblePosition(firstPositionInOrBeforeNode(insertedNodes.firstNodeInserted()));
 
     // We inserted before the enclosingBlockOfInsertionPos to prevent nesting, and the content before the enclosingBlockOfInsertionPos wasn't in its own block and
     // didn't have a br after it, so the inserted content ended up in the same paragraph.
-    if (!startOfInsertedContent.isNull() && enclosingBlockOfInsertionPos && insertionPos.anchorNode() == enclosingBlockOfInsertionPos->parentNode() && (unsigned)insertionPos.computeEditingOffset() < enclosingBlockOfInsertionPos->nodeIndex() && !isStartOfParagraph(startOfInsertedContent))
-        insertNodeAt(HTMLBRElement::create(document()).get(), startOfInsertedContent.deepEquivalent());
+    if (!startOfInsertedContent.isNull() && enclosingBlockOfInsertionPos && insertionPos.anchorNode() == enclosingBlockOfInsertionPos->parentNode() && (unsigned)insertionPos.computeEditingOffset() < enclosingBlockOfInsertionPos->nodeIndex() && !isStartOfParagraph(startOfInsertedContent)) {
+        insertNodeAt(HTMLBRElement::create(document()).get(), startOfInsertedContent.deepEquivalent(), editingState);
+        if (editingState->isAborted())
+            return;
+    }
 
     if (endBR && (plainTextFragment || (shouldRemoveEndBR(endBR, originalVisPosBeforeEndBR) && !(fragment.hasInterchangeNewlineAtEnd() && selectionIsPlainText)))) {
         RefPtrWillBeRawPtr<ContainerNode> parent = endBR->parentNode();
         insertedNodes.willRemoveNode(*endBR);
         removeNode(endBR, editingState);
         if (editingState->isAborted())
             return;
         if (Node* nodeToRemove = highestNodeToRemoveInPruning(parent.get())) {
             insertedNodes.willRemoveNode(*nodeToRemove);
             removeNode(nodeToRemove, editingState);
@@ skipping 432 matching lines @@
     visitor->trace(m_startOfInsertedContent);
     visitor->trace(m_endOfInsertedContent);
     visitor->trace(m_insertionStyle);
     visitor->trace(m_documentFragment);
     visitor->trace(m_startOfInsertedRange);
     visitor->trace(m_endOfInsertedRange);
     CompositeEditCommand::trace(visitor);
 }
 
 } // namespace blink