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diff --git a/Source/WebCore/websockets/WebSocketFrame.h b/Source/WebCore/websockets/WebSocketFrame.h
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+++ b/Source/WebCore/websockets/WebSocketFrame.h
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+/*
+ * Copyright (C) 2012 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.
+ */
+
+#ifndef WebSocketFrame_h
+#define WebSocketFrame_h
+
+#if ENABLE(WEB_SOCKETS)
+
+namespace WebCore {
+
+struct WebSocketFrame {
+    // RFC6455 opcodes.
+    enum OpCode {
+        OpCodeContinuation = 0x0,
+        OpCodeText = 0x1,
+        OpCodeBinary = 0x2,
+        OpCodeClose = 0x8,
+        OpCodePing = 0x9,
+        OpCodePong = 0xA,
+        OpCodeInvalid = 0x10
+    };
+
+    static bool isNonControlOpCode(OpCode opCode) { return opCode == OpCodeContinuation || opCode == OpCodeText || opCode == OpCodeBinary; }
+    static bool isControlOpCode(OpCode opCode) { return opCode == OpCodeClose || opCode == OpCodePing || opCode == OpCodePong; }
+    static bool isReservedOpCode(OpCode opCode) { return !isNonControlOpCode(opCode) && !isControlOpCode(opCode); }
+
+    WebSocketFrame(OpCode opCode = OpCodeInvalid, bool final = false, bool compress = false, bool masked = false, const char* payload = 0, size_t payloadLength = 0)
+        : opCode(opCode)
+        , final(final)
+        , compress(compress)
+        , reserved2(false)
+        , reserved3(false)
+        , masked(masked)
+        , payload(payload)
+        , payloadLength(payloadLength)
+    {
+    }
+
+    OpCode opCode;
+    bool final;
+    bool compress;
+    bool reserved2;
+    bool reserved3;
+    bool masked;
+    const char* payload;
+    size_t payloadLength;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_SOCKETS)
+
+#endif // WebSocketFrame_h