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diff --git a/WebCore/css/MediaQuery.cpp b/WebCore/css/MediaQuery.cpp
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+++ b/WebCore/css/MediaQuery.cpp
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+/*
+ * CSS Media Query
+ *
+ * Copyright (C) 2005, 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
+ *
+ * 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
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "MediaQuery.h"
+
+#include "MediaQueryExp.h"
+
+namespace WebCore {
+
+MediaQuery::MediaQuery(Restrictor r, const String& mediaType, Vector<MediaQueryExp*>* exprs)
+    : m_restrictor(r)
+    , m_mediaType(mediaType)
+    , m_expressions(exprs)
+{
+    if (!m_expressions)
+        m_expressions = new Vector<MediaQueryExp*>;
+}
+
+MediaQuery::~MediaQuery()
+{
+    if (m_expressions) {
+        deleteAllValues(*m_expressions);
+        delete m_expressions;
+    }
+}
+
+bool MediaQuery::operator==(const MediaQuery& other) const
+{
+    if (m_restrictor != other.m_restrictor
+        || m_mediaType != other.m_mediaType
+        || m_expressions->size() != other.m_expressions->size())
+        return false;
+
+    for (size_t i = 0; i < m_expressions->size(); ++i) {
+        MediaQueryExp* exp = m_expressions->at(i);
+        MediaQueryExp* oexp = other.m_expressions->at(i);
+        if (!(*exp == *oexp))
+            return false;
+    }
+
+    return true;
+}
+
+String MediaQuery::cssText() const
+{
+    String text;
+    switch (m_restrictor) {
+        case MediaQuery::Only:
+            text += "only ";
+            break;
+        case MediaQuery::Not:
+            text += "not ";
+            break;
+        case MediaQuery::None:
+        default:
+            break;
+    }
+    text += m_mediaType;
+    for (size_t i = 0; i < m_expressions->size(); ++i) {
+        MediaQueryExp* exp = m_expressions->at(i);
+        text += " and (";
+        text += exp->mediaFeature();
+        if (exp->value()) {
+            text += ": ";
+            text += exp->value()->cssText();
+        }
+        text += ")";
+    }
+    return text;
+}
+
+} //namespace