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

Source/core/dom/CustomElementException.cpp

 /*
  * Copyright (C) 2013 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 39 matching lines @@
 
     case ConstructorPropertyNotConfigurable:
         es.throwDOMException(NotSupportedError, preamble(type) + "prototype constructor property is not configurable.");
         return;
 
     case ContextDestroyedCheckingPrototype:
         es.throwDOMException(InvalidStateError, preamble(type) + "the context is no longer valid.");
         return;
 
     case ContextDestroyedCreatingCallbacks:
-        es.throwDOMException(InvalidStateError);
+        es.throwUninformativeAndGenericDOMException(InvalidStateError);
         return;
 
     case ContextDestroyedRegisteringDefinition:
-        es.throwDOMException(NotSupportedError);
+        es.throwUninformativeAndGenericDOMException(NotSupportedError);
         return;
 
     case ExtendsIsInvalidName:
         es.throwDOMException(InvalidCharacterError, preamble(type) + ": the tag name specified in 'extends' is not a valid tag name.");
         return;
 
     case ExtendsIsCustomElementName:
         es.throwDOMException(InvalidCharacterError, preamble(type) + ": the tag name specified in 'extends' is a custom element name. Use inheritance instead.");
         return;
 
@@ skipping 11 matching lines @@
 
     case TypeAlreadyRegistered:
         es.throwDOMException(InvalidStateError, preamble(type) + "a type with that name is already registered.");
         return;
     }
 
     ASSERT_NOT_REACHED();
 }
 
 } // namespace WebCore