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diff --git a/Source/WebCore/css/CSSMutableStyleDeclaration.h b/Source/WebCore/css/CSSMutableStyleDeclaration.h
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+/*
+ * (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef CSSMutableStyleDeclaration_h
+#define CSSMutableStyleDeclaration_h
+
+#include "CSSStyleDeclaration.h"
+#include "CSSPrimitiveValue.h"
+#include "CSSProperty.h"
+#include "KURLHash.h"
+#include "PlatformString.h"
+#include <wtf/ListHashSet.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class Node;
+
+class CSSMutableStyleDeclarationConstIterator {
+public:
+    CSSMutableStyleDeclarationConstIterator(const CSSMutableStyleDeclaration* decl, CSSProperty* current);
+    CSSMutableStyleDeclarationConstIterator(const CSSMutableStyleDeclarationConstIterator& o);
+    ~CSSMutableStyleDeclarationConstIterator();
+    
+    const CSSProperty& operator*() const { return *m_current; }
+    const CSSProperty* operator->() const { return m_current; }
+    
+    bool operator!=(const CSSMutableStyleDeclarationConstIterator& o) { ASSERT(m_decl == o.m_decl); return m_current != o.m_current; }
+    bool operator==(const CSSMutableStyleDeclarationConstIterator& o) { ASSERT(m_decl == o.m_decl); return m_current == o.m_current; }
+    
+    CSSMutableStyleDeclarationConstIterator& operator=(const CSSMutableStyleDeclarationConstIterator& o);
+    
+    CSSMutableStyleDeclarationConstIterator& operator++();
+    CSSMutableStyleDeclarationConstIterator& operator--();
+
+private:
+    const CSSMutableStyleDeclaration* m_decl;
+    CSSProperty* m_current;
+};
+
+class CSSMutableStyleDeclaration : public CSSStyleDeclaration {
+public:
+    static PassRefPtr<CSSMutableStyleDeclaration> create()
+    {
+        return adoptRef(new CSSMutableStyleDeclaration);
+    }
+    static PassRefPtr<CSSMutableStyleDeclaration> create(CSSRule* parentRule)
+    {
+        return adoptRef(new CSSMutableStyleDeclaration(parentRule));
+    }
+    static PassRefPtr<CSSMutableStyleDeclaration> create(CSSRule* parentRule, const CSSProperty* const* properties, int numProperties)
+    {
+        return adoptRef(new CSSMutableStyleDeclaration(parentRule, properties, numProperties));
+    }
+    static PassRefPtr<CSSMutableStyleDeclaration> create(const Vector<CSSProperty>& properties)
+    {
+        return adoptRef(new CSSMutableStyleDeclaration(0, properties));
+    }
+
+    CSSMutableStyleDeclaration& operator=(const CSSMutableStyleDeclaration&);
+    
+    typedef CSSMutableStyleDeclarationConstIterator const_iterator;
+
+    const_iterator begin() { return const_iterator(this, m_properties.begin()); }
+    const_iterator end() { return const_iterator(this, m_properties.end()); }
+
+    void setNode(Node* node) { m_node = node; }
+
+    Node* node() const { return m_node; }
+
+    virtual bool isMutableStyleDeclaration() const { return true; }
+
+    virtual String cssText() const;
+    virtual void setCssText(const String&, ExceptionCode&);
+
+    virtual unsigned virtualLength() const;
+    unsigned length() const { return m_properties.size(); }
+
+    virtual String item(unsigned index) const;
+
+    virtual PassRefPtr<CSSValue> getPropertyCSSValue(int propertyID) const;
+    virtual String getPropertyValue(int propertyID) const;
+    virtual bool getPropertyPriority(int propertyID) const;
+    virtual int getPropertyShorthand(int propertyID) const;
+    virtual bool isPropertyImplicit(int propertyID) const;
+
+    virtual void setProperty(int propertyId, const String& value, bool important, ExceptionCode&);
+    virtual String removeProperty(int propertyID, ExceptionCode&);
+
+    virtual PassRefPtr<CSSMutableStyleDeclaration> copy() const;
+
+    bool setProperty(int propertyID, int value, bool important = false, bool notifyChanged = true);
+    bool setProperty(int propertyID, const String& value, bool important = false, bool notifyChanged = true);
+
+    String removeProperty(int propertyID, bool notifyChanged = true, bool returnText = false);
+ 
+    // setLengthProperty treats integers as pixels! (Needed for conversion of HTML attributes.)
+    void setLengthProperty(int propertyId, const String& value, bool important, bool multiLength = false);
+    void setStringProperty(int propertyId, const String& value, CSSPrimitiveValue::UnitTypes, bool important = false); // parsed string value
+    void setImageProperty(int propertyId, const String& url, bool important = false);
+ 
+    // The following parses an entire new style declaration.
+    void parseDeclaration(const String& styleDeclaration);
+
+    // Besides adding the properties, this also removes any existing properties with these IDs.
+    // It does no notification since it's called by the parser.
+    void addParsedProperties(const CSSProperty* const *, int numProperties);
+    // This does no change notifications since it's only called by createMarkup.
+    void addParsedProperty(const CSSProperty&);
+ 
+    PassRefPtr<CSSMutableStyleDeclaration> copyBlockProperties() const;
+    void removeBlockProperties();
+    void removePropertiesInSet(const int* set, unsigned length, bool notifyChanged = true);
+
+    void merge(const CSSMutableStyleDeclaration*, bool argOverridesOnConflict = true);
+
+    void setStrictParsing(bool b) { m_strictParsing = b; }
+    bool useStrictParsing() const { return m_strictParsing; }
+
+    void addSubresourceStyleURLs(ListHashSet<KURL>&);
+
+protected:
+    CSSMutableStyleDeclaration(CSSRule* parentRule);
+
+private:
+    CSSMutableStyleDeclaration();
+    CSSMutableStyleDeclaration(CSSRule* parentRule, const Vector<CSSProperty>&);
+    CSSMutableStyleDeclaration(CSSRule* parentRule, const CSSProperty* const *, int numProperties);
+
+    virtual PassRefPtr<CSSMutableStyleDeclaration> makeMutable();
+
+    void setNeedsStyleRecalc();
+
+    String getShorthandValue(const int* properties, int number) const;
+    String getCommonValue(const int* properties, int number) const;
+    String getLayeredShorthandValue(const int* properties, unsigned number) const;
+    String get4Values(const int* properties) const;
+    
+    void setPropertyInternal(const CSSProperty&, CSSProperty* slot = 0);
+    bool removeShorthandProperty(int propertyID, bool notifyChanged);
+
+    Vector<CSSProperty>::const_iterator findPropertyWithId(int propertyId) const;
+    Vector<CSSProperty>::iterator findPropertyWithId(int propertyId);
+
+    Vector<CSSProperty, 4> m_properties;
+
+    Node* m_node;
+    bool m_strictParsing : 1;
+#ifndef NDEBUG
+    unsigned m_iteratorCount : 4;
+#endif
+
+    friend class CSSMutableStyleDeclarationConstIterator;
+};
+    
+inline CSSMutableStyleDeclarationConstIterator::CSSMutableStyleDeclarationConstIterator(const CSSMutableStyleDeclaration* decl, CSSProperty* current) 
+: m_decl(decl)
+, m_current(current)
+{ 
+#ifndef NDEBUG
+    const_cast<CSSMutableStyleDeclaration*>(m_decl)->m_iteratorCount++; 
+#endif
+}
+
+inline CSSMutableStyleDeclarationConstIterator::CSSMutableStyleDeclarationConstIterator(const CSSMutableStyleDeclarationConstIterator& o)
+: m_decl(o.m_decl)
+, m_current(o.m_current)
+{
+#ifndef NDEBUG
+    const_cast<CSSMutableStyleDeclaration*>(m_decl)->m_iteratorCount++; 
+#endif
+}
+
+inline CSSMutableStyleDeclarationConstIterator::~CSSMutableStyleDeclarationConstIterator() 
+{
+#ifndef NDEBUG
+    const_cast<CSSMutableStyleDeclaration*>(m_decl)->m_iteratorCount--;
+#endif
+}
+
+inline CSSMutableStyleDeclarationConstIterator& CSSMutableStyleDeclarationConstIterator::operator=(const CSSMutableStyleDeclarationConstIterator& o)
+{
+    m_decl = o.m_decl;
+    m_current = o.m_current;
+#ifndef NDEBUG
+    const_cast<CSSMutableStyleDeclaration*>(m_decl)->m_iteratorCount++; 
+#endif
+    return *this;
+}
+    
+inline CSSMutableStyleDeclarationConstIterator& CSSMutableStyleDeclarationConstIterator::operator++() 
+{ 
+    ASSERT(m_current != const_cast<CSSMutableStyleDeclaration*>(m_decl)->m_properties.end());
+    ++m_current;
+    return *this; 
+}
+
+inline CSSMutableStyleDeclarationConstIterator& CSSMutableStyleDeclarationConstIterator::operator--() 
+{ 
+    --m_current; 
+    return *this; 
+}
+
+} // namespace WebCore
+
+#endif // CSSMutableStyleDeclaration_h