DevTools: [CSS] use setStyleText as undo action for setPropertyText

Source/core/inspector/InspectorCSSAgent.cpp

 /*
  * Copyright (C) 2010, 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
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 211 matching lines @@
         , m_styleSheet(styleSheet)
         , m_cssId(cssId)
         , m_propertyIndex(propertyIndex)
         , m_text(text)
         , m_overwrite(overwrite)
     {
     }
 
     virtual String toString() OVERRIDE
     {
-        return mergeId() + ": " + m_oldText + " -> " + m_text;
+        return mergeId() + ": " + m_oldStyleText + " -> " + m_text;
     }
 
     virtual bool perform(ExceptionState& exceptionState) OVERRIDE
     {
         return redo(exceptionState);
     }
 
     virtual bool undo(ExceptionState& exceptionState) OVERRIDE
     {
         String placeholder;
-        return m_styleSheet->setPropertyText(m_cssId, m_propertyIndex, m_overwrite ? m_oldText : "", true, &placeholder, exceptionState);
+        return m_styleSheet->setStyleText(m_cssId, m_oldStyleText);
     }
 
     virtual bool redo(ExceptionState& exceptionState) OVERRIDE
     {
-        String oldText;
-        bool result = m_styleSheet->setPropertyText(m_cssId, m_propertyIndex, m_text, m_overwrite, &oldText, exceptionState);
-        m_oldText = oldText.stripWhiteSpace();
+        if (!m_styleSheet->getStyleText(m_cssId, &m_oldStyleText))
+            return false;
+        bool result = m_styleSheet->setPropertyText(m_cssId, m_propertyIndex, m_text, m_overwrite, exceptionState);
         return result;
     }
 
     virtual String mergeId() OVERRIDE
     {
         return String::format("SetPropertyText %s:%u:%s", m_styleSheet->id().utf8().data(), m_propertyIndex, m_overwrite ? "true" : "false");
     }
 
     virtual void merge(PassOwnPtr<Action> action) OVERRIDE
     {
         ASSERT(action->mergeId() == mergeId());
 
         SetPropertyTextAction* other = static_cast<SetPropertyTextAction*>(action.get());
         m_text = other->m_text;
     }
 
 private:
     RefPtr<InspectorStyleSheetBase> m_styleSheet;
     InspectorCSSId m_cssId;
     unsigned m_propertyIndex;
     String m_text;
-    String m_oldText;
+    String m_oldStyleText;
     bool m_overwrite;
 };
 
 class InspectorCSSAgent::SetRuleSelectorAction FINAL : public InspectorCSSAgent::StyleSheetAction {
     WTF_MAKE_NONCOPYABLE(SetRuleSelectorAction);
 public:
     SetRuleSelectorAction(InspectorStyleSheet* styleSheet, const InspectorCSSId& cssId, const String& selector)
         : InspectorCSSAgent::StyleSheetAction("SetRuleSelector")
         , m_styleSheet(styleSheet)
         , m_cssId(cssId)
@@ skipping 1069 matching lines @@
             documentsToChange.add(element->ownerDocument());
     }
 
     m_nodeIdToForcedPseudoState.clear();
     for (HashSet<Document*>::iterator it = documentsToChange.begin(), end = documentsToChange.end(); it != end; ++it)
         (*it)->setNeedsStyleRecalc(SubtreeStyleChange);
 }
 
 } // namespace WebCore