Amusingly deprecate the generic version of 'ExceptionState::throwDOMException'.

Source/core/dom/MutationObserver.cpp

 /*
  * Copyright (C) 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 66 matching lines @@
 {
     return (options & (Attributes | CharacterData | ChildList))
         && ((options & Attributes) || !(options & AttributeOldValue))
         && ((options & Attributes) || !(options & AttributeFilter))
         && ((options & CharacterData) || !(options & CharacterDataOldValue));
 }
 
 void MutationObserver::observe(Node* node, const Dictionary& optionsDictionary, ExceptionState& es)
 {
     if (!node) {
-        es.throwDOMException(NotFoundError);
+        es.throwUninformativeAndGenericDOMException(NotFoundError);
         return;
     }
 
     static const struct {
         const char* name;
         MutationObserverOptions value;
     } booleanOptions[] = {
         { "childList", ChildList },
         { "attributes", Attributes },
         { "characterData", CharacterData },
         { "subtree", Subtree },
         { "attributeOldValue", AttributeOldValue },
         { "characterDataOldValue", CharacterDataOldValue }
     };
     MutationObserverOptions options = 0;
     for (unsigned i = 0; i < sizeof(booleanOptions) / sizeof(booleanOptions[0]); ++i) {
         bool value = false;
         if (optionsDictionary.get(booleanOptions[i].name, value) && value)
             options |= booleanOptions[i].value;
     }
 
     HashSet<AtomicString> attributeFilter;
     if (optionsDictionary.get("attributeFilter", attributeFilter))
         options |= AttributeFilter;
 
     if (!validateOptions(options)) {
-        es.throwDOMException(SyntaxError);
+        es.throwUninformativeAndGenericDOMException(SyntaxError);
         return;
     }
 
     node->registerMutationObserver(this, options, attributeFilter);
 }
 
 Vector<RefPtr<MutationRecord> > MutationObserver::takeRecords()
 {
     Vector<RefPtr<MutationRecord> > records;
     records.swap(m_records);
@@ skipping 113 matching lines @@
                 observers[i]->deliver();
             else
                 suspendedMutationObservers().add(observers[i]);
         }
     }
 
     deliveryInProgress = false;
 }
 
 } // namespace WebCore