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diff --git a/Source/WebKit/chromium/src/WebEntities.cpp b/Source/WebKit/chromium/src/WebEntities.cpp
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+++ b/Source/WebKit/chromium/src/WebEntities.cpp
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+/*
+ * Copyright (C) 2009 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * OWNER 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 "WebEntities.h"
+
+#include "WebString.h"
+
+#include <string.h>
+#include <wtf/HashMap.h>
+#include <wtf/text/StringBuilder.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebKit {
+
+WebEntities::WebEntities(bool xmlEntities)
+{
+    ASSERT(m_entitiesMap.isEmpty());
+    m_entitiesMap.set(0x003c, "lt");
+    m_entitiesMap.set(0x003e, "gt");
+    m_entitiesMap.set(0x0026, "amp");
+    m_entitiesMap.set(0x0027, "apos");
+    m_entitiesMap.set(0x0022, "quot");
+    // We add #39 for test-compatibility reason.
+    if (!xmlEntities)
+        m_entitiesMap.set(0x0027, String("#39"));
+}
+
+String WebEntities::entityNameByCode(int code) const
+{
+    if (m_entitiesMap.contains(code))
+        return m_entitiesMap.get(code);
+    return "";
+}
+
+String WebEntities::convertEntitiesInString(const String& value) const
+{
+    unsigned len = value.length();
+    const UChar* startPos = value.characters();
+    const UChar* curPos = startPos;
+
+    // FIXME: Optimize - create StringBuilder only if value has any entities.
+    StringBuilder result;
+    while (len--) {
+        if (m_entitiesMap.contains(*curPos)) {
+            // Append content before entity code.
+            if (curPos > startPos)
+                result.append(String(startPos, curPos - startPos));
+            result.append('&');
+            result.append(m_entitiesMap.get(*curPos));
+            result.append(';');
+            startPos = ++curPos;
+        } else
+            curPos++;
+    }
+    // Append the remaining content.
+    if (curPos > startPos)
+        result.append(String(startPos, curPos - startPos));
+
+    return result.toString();
+}
+
+} // namespace WebKit