ASSERTION FAILED: extractedStyle in WebCore::ApplyStyleCommand::removeInlineStyleFromElement

Source/core/editing/ApplyStyleCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2008, 2009 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 874 matching lines @@
 bool ApplyStyleCommand::removeInlineStyleFromElement(EditingStyle* style, PassRefPtr<HTMLElement> element, InlineStyleRemovalMode mode, EditingStyle* extractedStyle)
 {
     ASSERT(element);
 
     if (!element->parentNode() || !element->parentNode()->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable))
         return false;
 
     if (isStyledInlineElementToRemove(element.get())) {
         if (mode == RemoveNone)
             return true;
-        ASSERT(extractedStyle);
-        extractedStyle->mergeInlineStyleOfElement(element.get(), EditingStyle::OverrideValues);
+        if (extractedStyle)
+            extractedStyle->mergeInlineStyleOfElement(element.get(), EditingStyle::OverrideValues);
         removeNodePreservingChildren(element);
         return true;
     }
 
     bool removed = false;
     if (removeImplicitlyStyledElement(style, element.get(), mode, extractedStyle))
         removed = true;
 
     if (!element->inDocument())
         return removed;
@@ skipping 636 matching lines @@
         String textToMove = nextText->data();
         insertTextIntoNode(childText, childText->length(), textToMove);
         removeNode(next);
         // don't move child node pointer. it may want to merge with more text nodes.
     }
 
     updateStartEnd(newStart, newEnd);
 }
 
 }