Initialize VideoEncoder objects asynchronously.

webrtc/video/video_send_stream.h

Index: webrtc/video/video_send_stream.h
diff --git a/webrtc/video/video_send_stream.h b/webrtc/video/video_send_stream.h
index 64b7fceaf358eed00b815bdfc870bbf513fec420..23c73ca33fefb5c4ae722ff635fc3cc8bc4a12e4 100644
--- a/webrtc/video/video_send_stream.h
+++ b/webrtc/video/video_send_stream.h
@@ -59,7 +59,7 @@ class VideoSendStream : public webrtc::VideoSendStream,
 
   // webrtc::VideoSendStream implementation.
   VideoCaptureInput* Input() override;
-  bool ReconfigureVideoEncoder(const VideoEncoderConfig& config) override;
+  void ReconfigureVideoEncoder(const VideoEncoderConfig& config) override;
   Stats GetStats() override;
 
   // webrtc::CpuOveruseObserver implementation.
@@ -72,8 +72,9 @@ class VideoSendStream : public webrtc::VideoSendStream,
   int64_t GetRtt() const;
   int GetPaddingNeededBps() const;
 
+  void SetSendCodec(VideoCodec video_codec);
+
  private:
-  bool SetSendCodec(VideoCodec video_codec);
   void ConfigureSsrcs();
 
   SendStatisticsProxy stats_proxy_;
@@ -91,11 +92,6 @@ class VideoSendStream : public webrtc::VideoSendStream,
   rtc::scoped_ptr<ViEChannel> vie_channel_;
   rtc::scoped_ptr<ViEEncoder> vie_encoder_;
   rtc::scoped_ptr<EncoderStateFeedback> encoder_feedback_;
-
-  // Used as a workaround to indicate that we should be using the configured
-  // start bitrate initially, instead of the one reported by VideoEngine (which
-  // defaults to too high).
-  bool use_config_bitrate_;
 };
 }  // namespace internal
 }  // namespace webrtc