Add WebrtcVideoEncoder interface

remoting/codec/video_encoder_vpx.h

 // 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 REMOTING_CODEC_VIDEO_ENCODER_VPX_H_
 #define REMOTING_CODEC_VIDEO_ENCODER_VPX_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
@@ skipping 19 matching lines @@
   static std::unique_ptr<VideoEncoderVpx> CreateForVP8();
   static std::unique_ptr<VideoEncoderVpx> CreateForVP9();
 
   ~VideoEncoderVpx() override;
 
   void SetTickClockForTests(base::TickClock* tick_clock);
 
   // VideoEncoder interface.
   void SetLosslessEncode(bool want_lossless) override;
   void SetLosslessColor(bool want_lossless) override;
-  std::unique_ptr<VideoPacket> Encode(const webrtc::DesktopFrame& frame,
-                                      uint32_t flags) override;
+  std::unique_ptr<VideoPacket> Encode(
+      const webrtc::DesktopFrame& frame) override;
 
  private:
   explicit VideoEncoderVpx(bool use_vp9);
 
   // (Re)Configures this instance to encode frames of the specified |size|,
   // with the configured lossless color & encoding modes.
   void Configure(const webrtc::DesktopSize& size);
 
   // Prepares |image_| for encoding. Writes updated rectangles into
   // |updated_region|.
@@ skipping 38 matching lines @@
 
   base::DefaultTickClock default_tick_clock_;
   base::TickClock* clock_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoEncoderVpx);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CODEC_VIDEO_ENCODER_VPX_H_