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diff --git a/Source/WebKit/android/nav/CachedLayer.h b/Source/WebKit/android/nav/CachedLayer.h
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+++ b/Source/WebKit/android/nav/CachedLayer.h
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+/*
+ * Copyright 2010, The Android Open Source Project
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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 CachedLayer_h
+#define CachedLayer_h
+
+#include "CachedDebug.h"
+#include "IntRect.h"
+
+class SkPicture;
+
+namespace WebCore {
+    class FloatPoint;
+    class LayerAndroid;
+}
+
+using namespace WebCore;
+
+namespace android {
+
+class CachedLayer {
+public:
+#if USE(ACCELERATED_COMPOSITING)
+    bool operator<(const CachedLayer& l) const {
+        return mCachedNodeIndex < l.mCachedNodeIndex;
+    }
+    // FIXME: adjustBounds should be renamed globalBounds or toGlobal
+    IntRect adjustBounds(const LayerAndroid* root, const IntRect& bounds) const;
+    int cachedNodeIndex() const { return mCachedNodeIndex; }
+    FloatPoint getGlobalPosition(const LayerAndroid* ) const;
+    const LayerAndroid* layer(const LayerAndroid* root) const;
+    IntRect localBounds(const LayerAndroid* root, const IntRect& bounds) const;
+    SkPicture* picture(const LayerAndroid* root) const;
+    void toLocal(const LayerAndroid* root, int* xPtr, int* yPtr) const;
+    void setCachedNodeIndex(int index) { mCachedNodeIndex = index; }
+    // Set the global position of the layer.  This is recorded by the nav cache
+    // and corresponds to RenderLayer::absoluteBoundingBox() which is in
+    // document coordinates.  This can be different from the global position of
+    // the layer if the layer is fixed positioned or scrollable.
+    void setOffset(const IntPoint& offset) { mOffset = offset; }
+    void setUniqueId(int uniqueId) { mUniqueId = uniqueId; }
+    int uniqueId() const { return mUniqueId; }
+private:
+    int mCachedNodeIndex;
+    IntPoint mOffset;
+    int mUniqueId;
+
+#if DUMP_NAV_CACHE
+public:
+    class Debug {
+public:
+        CachedLayer* base() const;
+        void print() const;
+        static void printLayerAndroid(const LayerAndroid* );
+        static void printRootLayerAndroid(const LayerAndroid* );
+        static int spaces;
+    } mDebug;
+#endif
+#endif // USE(ACCELERATED_COMPOSITING)
+};
+
+}
+
+#endif