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diff --git a/dom/media/gmp/gmp-api/gmp-video-frame-encoded.h b/dom/media/gmp/gmp-api/gmp-video-frame-encoded.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* Copyright (c) 2011, The WebRTC project authors. All rights reserved.
+ * Copyright (c) 2014, Mozilla
+ *
+ * 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.
+ *
+ ** Neither the name of Google nor the names of its contributors may
+ *  be used to endorse or promote products derived from this software
+ *  without specific prior written permission.
+ *
+ * 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.
+ */
+
+#ifndef GMP_VIDEO_FRAME_ENCODED_h_
+#define GMP_VIDEO_FRAME_ENCODED_h_
+
+#include <stdint.h>
+#include "gmp-video-frame.h"
+#include "gmp-video-codec.h"
+
+enum GMPVideoFrameType {
+  kGMPKeyFrame = 0,
+  kGMPDeltaFrame = 1,
+  kGMPGoldenFrame = 2,
+  kGMPAltRefFrame = 3,
+  kGMPSkipFrame = 4,
+  kGMPVideoFrameInvalid = 5  // Must always be last.
+};
+
+// The implementation backing this interface uses shared memory for the
+// buffer(s). This means it can only be used by the "owning" process.
+// At first the process which created the object owns it. When the object
+// is passed to an interface the creator loses ownership and must Destroy()
+// the object. Further attempts to use it may fail due to not being able to
+// access the underlying buffer(s).
+//
+// Methods that create or destroy shared memory must be called on the main
+// thread. They are marked below.
+class GMPVideoEncodedFrame : public GMPVideoFrame {
+ public:
+  // MAIN THREAD ONLY
+  virtual GMPErr CreateEmptyFrame(uint32_t aSize) = 0;
+  // MAIN THREAD ONLY
+  virtual GMPErr CopyFrame(const GMPVideoEncodedFrame& aVideoFrame) = 0;
+  virtual void SetEncodedWidth(uint32_t aEncodedWidth) = 0;
+  virtual uint32_t EncodedWidth() = 0;
+  virtual void SetEncodedHeight(uint32_t aEncodedHeight) = 0;
+  virtual uint32_t EncodedHeight() = 0;
+  // Microseconds
+  virtual void SetTimeStamp(uint64_t aTimeStamp) = 0;
+  virtual uint64_t TimeStamp() = 0;
+  // Set frame duration (microseconds)
+  // NOTE: next-frame's Timestamp() != this-frame's TimeStamp()+Duration()
+  // depending on rounding to avoid having to track roundoff errors
+  // and dropped/missing frames(!) (which may leave a large gap)
+  virtual void SetDuration(uint64_t aDuration) = 0;
+  virtual uint64_t Duration() const = 0;
+  virtual void SetFrameType(GMPVideoFrameType aFrameType) = 0;
+  virtual GMPVideoFrameType FrameType() = 0;
+  virtual void SetAllocatedSize(uint32_t aNewSize) = 0;
+  virtual uint32_t AllocatedSize() = 0;
+  virtual void SetSize(uint32_t aSize) = 0;
+  virtual uint32_t Size() = 0;
+  virtual void SetCompleteFrame(bool aCompleteFrame) = 0;
+  virtual bool CompleteFrame() = 0;
+  virtual const uint8_t* Buffer() const = 0;
+  virtual uint8_t* Buffer() = 0;
+  virtual GMPBufferType BufferType() const = 0;
+  virtual void SetBufferType(GMPBufferType aBufferType) = 0;
+};
+
+#endif  // GMP_VIDEO_FRAME_ENCODED_h_