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diff --git a/Source/WebCore/css/WebKitCSSRegionRule.cpp b/Source/WebCore/css/WebKitCSSRegionRule.cpp
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+++ b/Source/WebCore/css/WebKitCSSRegionRule.cpp
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+/*
+ * Copyright 2011 Adobe Systems Incorporated. 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 documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “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 THE COPYRIGHT HOLDER 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 "WebKitCSSRegionRule.h"
+
+#include "CSSParserValues.h"
+#include "CSSRuleList.h"
+
+namespace WebCore {
+WebKitCSSRegionRule::WebKitCSSRegionRule(CSSStyleSheet* parent, Vector<OwnPtr<CSSParserSelector> >* selectors, PassRefPtr<CSSRuleList> rules)
+    : CSSRule(parent, CSSRule::WEBKIT_REGION_RULE)
+    , m_ruleList(rules)
+{
+    for (unsigned index = 0; index < m_ruleList->length(); ++index)
+        m_ruleList->item(index)->setParentRule(this);
+
+    m_selectorList.adoptSelectorVector(*selectors);
+}
+
+WebKitCSSRegionRule::~WebKitCSSRegionRule()
+{
+    for (unsigned index = 0; index < m_ruleList->length(); ++index)
+        m_ruleList->item(index)->setParentRule(0);
+}
+
+String WebKitCSSRegionRule::cssText() const
+{
+    String result = "@-webkit-region ";
+
+    // First add the selectors.
+    result += m_selectorList.selectorsText();
+
+    // Then add the rules.
+    result += " { \n";
+
+    if (m_ruleList)
+        result += m_ruleList->rulesText();
+
+    result += "}";
+    return result;
+}
+
+} // namespace WebCore