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diff --git a/include/encode/SkWebpEncoder.h b/include/encode/SkWebpEncoder.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 SkWebpEncoder_DEFINED
+#define SkWebpEncoder_DEFINED
+
+#include "SkEncoder.h"
+
+class SkWStream;
+
+namespace SK_API SkWebpEncoder {
+
+ struct Options {
+ /**
+ * |fQuality| must be in [0.0f, 100.0f] where 0.0f corresponds to the lowest quality.
+ */
+ float fQuality = 100.0f;
+
+ /**
+ * If the input is premultiplied, this controls the unpremultiplication behavior.
+ * The encoder can convert to linear before unpremultiplying or ignore the transfer
+ * function and unpremultiply the input as is.
+ */
+ SkTransferFunctionBehavior fUnpremulBehavior = SkTransferFunctionBehavior::kRespect;
+ };
+
+ /**
+ * Encode the |src| pixels to the |dst| stream.
+ * |options| may be used to control the encoding behavior.
+ *
+ * Returns true on success. Returns false on an invalid or unsupported |src|.
+ */
+ bool Encode(SkWStream* dst, const SkPixmap& src, const Options& options);
+};
+
+#endif