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diff --git a/Source/WebCore/replay/SerializationMethods.h b/Source/WebCore/replay/SerializationMethods.h
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+++ b/Source/WebCore/replay/SerializationMethods.h
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+/*
+ * Copyright (C) 2013 University of Washington. All rights reserved.
+ * Copyright (C) 2014 Apple 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:
+ *
+ * 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 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
+ * HOLDER 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.
+ */
+
+#pragma once
+
+#if ENABLE(WEB_REPLAY)
+
+#include <replay/EncodedValue.h>
+#include <replay/NondeterministicInput.h>
+
+namespace WebCore {
+
+class Document;
+class Frame;
+class Page;
+class PlatformKeyboardEvent;
+class PlatformMouseEvent;
+class PlatformWheelEvent;
+class PluginData;
+class SecurityOrigin;
+class URL;
+
+#if USE(APPKIT)
+struct KeypressCommand;
+#endif
+
+uint32_t frameIndexFromDocument(const Document*);
+uint32_t frameIndexFromFrame(const Frame*);
+Document* documentFromFrameIndex(Page*, uint32_t frameIndex);
+Frame* frameFromFrameIndex(Page*, uint32_t frameIndex);
+
+} // namespace WebCore
+
+// Template specializations must be defined in the same namespace as the template declaration.
+namespace JSC {
+
+#if USE(APPKIT)
+template<> struct EncodingTraits<WebCore::KeypressCommand> {
+    typedef WebCore::KeypressCommand DecodedType;
+
+    static EncodedValue encodeValue(const WebCore::KeypressCommand& value);
+    static bool decodeValue(EncodedValue&, WebCore::KeypressCommand& value);
+};
+#endif // USE(APPKIT)
+
+template<> struct EncodingTraits<NondeterministicInputBase> {
+    typedef NondeterministicInputBase DecodedType;
+
+    static EncodedValue encodeValue(const NondeterministicInputBase& value);
+    static bool decodeValue(EncodedValue&, std::unique_ptr<NondeterministicInputBase>& value);
+};
+
+template<> struct EncodingTraits<WebCore::PlatformKeyboardEvent> {
+    typedef WebCore::PlatformKeyboardEvent DecodedType;
+
+    static EncodedValue encodeValue(const WebCore::PlatformKeyboardEvent& value);
+    static bool decodeValue(EncodedValue&, std::unique_ptr<WebCore::PlatformKeyboardEvent>& value);
+};
+
+template<> struct EncodingTraits<WebCore::PlatformMouseEvent> {
+    typedef WebCore::PlatformMouseEvent DecodedType;
+
+    static EncodedValue encodeValue(const WebCore::PlatformMouseEvent& value);
+    static bool decodeValue(EncodedValue&, std::unique_ptr<WebCore::PlatformMouseEvent>& value);
+};
+
+template<> struct EncodingTraits<WebCore::PlatformWheelEvent> {
+    typedef WebCore::PlatformWheelEvent DecodedType;
+
+    static EncodedValue encodeValue(const WebCore::PlatformWheelEvent& value);
+    static bool decodeValue(EncodedValue&, std::unique_ptr<WebCore::PlatformWheelEvent>& value);
+};
+
+template<> struct EncodingTraits<WebCore::PluginData> {
+    typedef RefPtr<WebCore::PluginData> DecodedType;
+
+    static EncodedValue encodeValue(RefPtr<WebCore::PluginData> value);
+    static bool decodeValue(EncodedValue&, RefPtr<WebCore::PluginData>& value);
+};
+
+template<> struct EncodingTraits<WebCore::URL> {
+    typedef WebCore::URL DecodedType;
+
+    static EncodedValue encodeValue(const WebCore::URL& value);
+    static bool decodeValue(EncodedValue&, WebCore::URL& value);
+};
+
+template<> struct EncodingTraits<WebCore::SecurityOrigin> {
+    typedef RefPtr<WebCore::SecurityOrigin> DecodedType;
+
+    static EncodedValue encodeValue(RefPtr<WebCore::SecurityOrigin> value);
+    static bool decodeValue(EncodedValue&, RefPtr<WebCore::SecurityOrigin>& value);
+};
+
+} // namespace JSC
+
+#endif // ENABLE(WEB_REPLAY)