Delay string conversion of attribute names until needed.

Source/core/inspector/InspectorDOMAgent.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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
@@ skipping 1988 matching lines @@
         m_frontend->childNodeRemoved(parentId, m_documentNodeToIdMap->get(node));
     }
     unbind(node, m_documentNodeToIdMap.get());
 }
 
 void InspectorDOMAgent::willModifyDOMAttr(Element*, const AtomicString& oldValue, const AtomicString& newValue)
 {
     m_suppressAttributeModifiedEvent = (oldValue == newValue);
 }
 
-void InspectorDOMAgent::didModifyDOMAttr(Element* element, const String& name, const AtomicString& value)
+void InspectorDOMAgent::didModifyDOMAttr(Element* element, const QualifiedName& name, const AtomicString& value)
 {
     bool shouldSuppressEvent = m_suppressAttributeModifiedEvent;
     m_suppressAttributeModifiedEvent = false;
     if (shouldSuppressEvent)
         return;
 
     int id = boundNodeId(element);
     // If node is not mapped yet -> ignore the event.
     if (!id)
         return;
 
     if (m_domListener)
         m_domListener->didModifyDOMAttr(element);
 
-    m_frontend->attributeModified(id, name, value);
+    m_frontend->attributeModified(id, name.toString(), value);
 }
 
-void InspectorDOMAgent::didRemoveDOMAttr(Element* element, const String& name)
+void InspectorDOMAgent::didRemoveDOMAttr(Element* element, const QualifiedName& name)
 {
     int id = boundNodeId(element);
     // If node is not mapped yet -> ignore the event.
     if (!id)
         return;
 
     if (m_domListener)
         m_domListener->didModifyDOMAttr(element);
 
-    m_frontend->attributeRemoved(id, name);
+    m_frontend->attributeRemoved(id, name.toString());
 }
 
 void InspectorDOMAgent::styleAttributeInvalidated(const WillBeHeapVector<RawPtrWillBeMember<Element> >& elements)
 {
     RefPtr<TypeBuilder::Array<int> > nodeIds = TypeBuilder::Array<int>::create();
     for (unsigned i = 0, size = elements.size(); i < size; ++i) {
         Element* element = elements.at(i);
         int id = boundNodeId(element);
         // If node is not mapped yet -> ignore the event.
         if (!id)
@@ skipping 255 matching lines @@
     visitor->trace(m_revalidateTask);
     visitor->trace(m_searchResults);
 #endif
     visitor->trace(m_history);
     visitor->trace(m_domEditor);
     visitor->trace(m_listener);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink