1 files changed, 64 insertions, 0 deletions
diff --git a/Source/WebKit2/Shared/LayerTreeContext.h b/Source/WebKit2/Shared/LayerTreeContext.h
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+++ b/Source/WebKit2/Shared/LayerTreeContext.h
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+/*
+ * Copyright (C) 2011 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 LayerTreeContext_h
+#define LayerTreeContext_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+namespace CoreIPC {
+    class ArgumentDecoder;
+    class ArgumentEncoder;
+}
+
+namespace WebKit {
+
+class LayerTreeContext {
+public:
+    LayerTreeContext();
+    ~LayerTreeContext();
+
+    void encode(CoreIPC::ArgumentEncoder*) const;
+    static bool decode(CoreIPC::ArgumentDecoder*, LayerTreeContext&);
+
+    bool isEmpty() const;
+
+#if PLATFORM(MAC)
+    uint32_t contextID;
+#endif
+};
+
+bool operator==(const LayerTreeContext&, const LayerTreeContext&);
+
+inline bool operator!=(const LayerTreeContext& a, const LayerTreeContext& b)
+{
+    return !(a == b);
+}
+
+};
+
+#endif // USE(ACCELERATED_COMPOSITING)
+
+#endif // LayerTreeContext_h