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diff --git a/gfx/skia/skia/src/pdf/SkKeyedImage.h b/gfx/skia/skia/src/pdf/SkKeyedImage.h
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+++ b/gfx/skia/skia/src/pdf/SkKeyedImage.h
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+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef SkKeyedImage_DEFINED
+#define SkKeyedImage_DEFINED
+
+#include "include/core/SkBitmap.h"
+#include "include/core/SkImage.h"
+#include "src/pdf/SkBitmapKey.h"
+
+/**
+   This class has all the advantages of SkBitmaps and SkImages.
+
+   The SkImage holds on to encoded data.  The SkBitmapKey properly de-dups subsets.
+ */
+class SkKeyedImage {
+public:
+    SkKeyedImage() {}
+    SkKeyedImage(sk_sp<SkImage>);
+    SkKeyedImage(const SkBitmap&);
+    SkKeyedImage(SkKeyedImage&&) = default;
+    SkKeyedImage(const SkKeyedImage&) = default;
+
+    SkKeyedImage& operator=(SkKeyedImage&&) = default;
+    SkKeyedImage& operator=(const SkKeyedImage&) = default;
+
+    explicit operator bool() const { return fImage != nullptr; }
+    const SkBitmapKey& key() const { return fKey; }
+    const sk_sp<SkImage>& image() const { return fImage; }
+    sk_sp<SkImage> release();
+    SkKeyedImage subset(SkIRect subset) const;
+
+private:
+    sk_sp<SkImage> fImage;
+    SkBitmapKey fKey = {{0, 0, 0, 0}, 0};
+};
+
+/**
+ *  Given an Image, return the Bitmap Key that corresponds to it.  If the Image
+ *  wraps a Bitmap, use that Bitmap's key.
+ */
+SkBitmapKey SkBitmapKeyFromImage(const SkImage*);
+#endif  // SkKeyedImage_DEFINED