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diff --git a/chromium/media/cast/video_sender/codecs/vp8/vp8_encoder.h b/chromium/media/cast/video_sender/codecs/vp8/vp8_encoder.h
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index 00000000000..3b041a01d26
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+++ b/chromium/media/cast/video_sender/codecs/vp8/vp8_encoder.h
@@ -0,0 +1,87 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_CAST_VIDEO_SENDER_CODECS_VP8_VP8_ENCODER_H_
+#define MEDIA_CAST_VIDEO_SENDER_CODECS_VP8_VP8_ENCODER_H_
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "media/cast/cast_config.h"
+#include "third_party/libvpx/source/libvpx/vpx/vpx_encoder.h"
+
+// VPX forward declaration.
+typedef struct vpx_codec_ctx vpx_enc_ctx_t;
+
+namespace media {
+namespace cast {
+
+const int kNumberOfVp8VideoBuffers = 3;
+
+class Vp8Encoder {
+ public:
+  Vp8Encoder(const VideoSenderConfig& video_config,
+             uint8 max_unacked_frames);
+
+  ~Vp8Encoder();
+
+  // Encode a raw image (as a part of a video stream).
+  bool Encode(const I420VideoFrame& input_image,
+              EncodedVideoFrame* encoded_image);
+
+  // Update the encoder with a new target bit rate.
+  void UpdateRates(uint32 new_bitrate);
+
+  // Set the next frame to be a key frame.
+  void GenerateKeyFrame();
+
+  void LatestFrameIdToReference(uint8 frame_id);
+
+ private:
+  enum Vp8Buffers {
+    kAltRefBuffer = 0,
+    kGoldenBuffer = 1,
+    kLastBuffer = 2,
+    kNoBuffer = 3 // Note: must be last.
+  };
+
+  void InitEncode(int number_of_cores);
+
+  // Calculate the max target in % for a keyframe.
+  uint32 MaxIntraTarget(uint32 optimal_buffer_size) const;
+
+  // Calculate which next Vp8 buffers to update with the next frame.
+  Vp8Buffers GetNextBufferToUpdate();
+
+  // Calculate which previous frame to reference.
+  uint8_t GetLatestFrameIdToReference();
+
+  // Get encoder flags for our referenced encoder buffers.
+  void GetCodecReferenceFlags(vpx_codec_flags_t* flags);
+
+  // Get encoder flags for our encoder buffers to update with next frame.
+  void GetCodecUpdateFlags(Vp8Buffers buffer_to_update,
+                           vpx_codec_flags_t* flags);
+
+  const VideoSenderConfig cast_config_;
+  const bool use_multiple_video_buffers_;
+  const int max_number_of_repeated_buffers_in_a_row_;
+
+  // VP8 internal objects.
+  scoped_ptr<vpx_codec_enc_cfg_t> config_;
+  vpx_enc_ctx_t* encoder_;
+  vpx_image_t* raw_image_;
+
+  bool key_frame_requested_;
+  int64 timestamp_;
+  uint8 last_encoded_frame_id_;
+  uint8 used_buffers_frame_id_[kNumberOfVp8VideoBuffers];
+  bool acked_frame_buffers_[kNumberOfVp8VideoBuffers];
+  Vp8Buffers last_used_vp8_buffer_;
+  int number_of_repeated_buffers_;
+};
+
+}  // namespace cast
+}  // namespace media
+
+#endif  // MEDIA_CAST_VIDEO_SENDER_CODECS_VP8_VP8_ENCODER_H_