New flag is_screencast in VideoOptions.

webrtc/media/engine/webrtcvideoengine2.h

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 283 matching lines @@
     };
 
     struct Dimensions {
       // Initial encoder configuration (QCIF, 176x144) frame (to ensure that
       // hardware encoders can be initialized). This gives us low memory usage
       // but also makes it so configuration errors are discovered at the time we
       // apply the settings rather than when we get the first frame (waiting for
       // the first frame to know that you gave a bad codec parameter could make
       // debugging hard).
       // TODO(pbos): Consider setting up encoders lazily.
-      Dimensions() : width(176), height(144), is_screencast(false) {}
+      Dimensions() : width(176), height(144) {}
       int width;
       int height;
-      bool is_screencast;
     };
 
     union VideoEncoderSettings {
       webrtc::VideoCodecH264 h264;
       webrtc::VideoCodecVP8 vp8;
       webrtc::VideoCodecVP9 vp9;
     };
 
     static std::vector<webrtc::VideoStream> CreateVideoStreams(
         const VideoCodec& codec,
         const VideoOptions& options,
         int max_bitrate_bps,
         size_t num_streams);
     static std::vector<webrtc::VideoStream> CreateSimulcastVideoStreams(
         const VideoCodec& codec,
         const VideoOptions& options,
         int max_bitrate_bps,
         size_t num_streams);
 
-    void* ConfigureVideoEncoderSettings(const VideoCodec& codec,
-                                        const VideoOptions& options,
-                                        bool is_screencast)
+    void* ConfigureVideoEncoderSettings(const VideoCodec& codec)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
 
     AllocatedEncoder CreateVideoEncoder(const VideoCodec& codec)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
     void DestroyVideoEncoder(AllocatedEncoder* encoder)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
     void SetCodec(const VideoCodecSettings& codec)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
     void RecreateWebRtcStream() EXCLUSIVE_LOCKS_REQUIRED(lock_);
     webrtc::VideoEncoderConfig CreateVideoEncoderConfig(
         const Dimensions& dimensions,
         const VideoCodec& codec) const EXCLUSIVE_LOCKS_REQUIRED(lock_);
-    void SetDimensions(int width, int height, bool is_screencast)
+    void SetDimensions(int width, int height)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
 
     rtc::ThreadChecker thread_checker_;
     rtc::AsyncInvoker invoker_;
     rtc::Thread* worker_thread_;
     const std::vector<uint32_t> ssrcs_;
     const std::vector<SsrcGroup> ssrc_groups_;
     webrtc::Call* const call_;
     rtc::VideoSinkWants sink_wants_;
     // Counter used for deciding if the video resolution is currently
     // restricted by CPU usage. It is reset if |capturer_| is changed.
     int cpu_restricted_counter_;
     // Total number of times resolution as been requested to be changed due to
     // CPU adaptation.
     int number_of_cpu_adapt_changes_;
     VideoCapturer* capturer_;
     WebRtcVideoEncoderFactory* const external_encoder_factory_
         GUARDED_BY(lock_);
 
     rtc::CriticalSection lock_;
     webrtc::VideoSendStream* stream_ GUARDED_BY(lock_);
     VideoSendStreamParameters parameters_ GUARDED_BY(lock_);
     bool pending_encoder_reconfiguration_ GUARDED_BY(lock_);
     VideoEncoderSettings encoder_settings_ GUARDED_BY(lock_);
     AllocatedEncoder allocated_encoder_ GUARDED_BY(lock_);
     Dimensions last_dimensions_ GUARDED_BY(lock_);
     webrtc::VideoRotation last_rotation_ GUARDED_BY(lock_) =
         webrtc::kVideoRotation_0;
 
-    bool capturer_is_screencast_ GUARDED_BY(lock_);
     bool sending_ GUARDED_BY(lock_);
     bool muted_ GUARDED_BY(lock_);
 
     // The timestamp of the first frame received
     // Used to generate the timestamps of subsequent frames
     int64_t first_frame_timestamp_ms_ GUARDED_BY(lock_);
 
     // The timestamp of the last frame received
     // Used to generate timestamp for the black frame when capturer is removed
     int64_t last_frame_timestamp_ms_ GUARDED_BY(lock_);
@@ skipping 136 matching lines @@
   webrtc::Call::Config::BitrateConfig bitrate_config_;
   // TODO(deadbeef): Don't duplicate information between
   // send_params/recv_params, rtp_extensions, options, etc.
   VideoSendParameters send_params_;
   VideoRecvParameters recv_params_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_ENGINE_WEBRTCVIDEOENGINE2_H_