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diff --git a/Source/WebCore/html/ColorInputType.cpp b/Source/WebCore/html/ColorInputType.cpp
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+++ b/Source/WebCore/html/ColorInputType.cpp
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+/*
+ * 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:
+ *
+ *     * 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 "ColorInputType.h"
+
+#include "Color.h"
+#include "HTMLInputElement.h"
+#include <wtf/PassOwnPtr.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+static bool isValidColorString(const String& value)
+{
+    if (value.isEmpty())
+        return false;
+    if (value[0] != '#')
+        return false;
+
+    // We don't accept #rgb and #aarrggbb formats.
+    if (value.length() != 7)
+        return false;
+    Color color(value);
+    return color.isValid() && !color.hasAlpha();
+}
+
+PassOwnPtr<InputType> ColorInputType::create(HTMLInputElement* element)
+{
+    return adoptPtr(new ColorInputType(element));
+}
+
+const AtomicString& ColorInputType::formControlType() const
+{
+    return InputTypeNames::color();
+}
+
+bool ColorInputType::typeMismatchFor(const String& value) const
+{
+    // FIXME: Should not accept an empty value. Remove it when we implement value
+    // sanitization for type=color.
+    if (value.isEmpty())
+        return false;
+    return !isValidColorString(value);
+}
+
+bool ColorInputType::typeMismatch() const
+{
+    // FIXME: Should return false. We don't implement value sanitization for
+    // type=color yet.
+    String value = element()->value();
+    return !value.isEmpty() && !isValidColorString(value);
+}
+
+bool ColorInputType::supportsRequired() const
+{
+    return false;
+}
+
+} // namespace WebCore