Initialize VideoEncoder objects asynchronously.

talk/media/webrtc/webrtcvideoengine2.cc

Index: talk/media/webrtc/webrtcvideoengine2.cc
diff --git a/talk/media/webrtc/webrtcvideoengine2.cc b/talk/media/webrtc/webrtcvideoengine2.cc
index e6bd294bc74e70f392cdd9f8a2486f8bf352a1fb..83e91624dd2e2836bb50811a881d39c197308ff2 100644
--- a/talk/media/webrtc/webrtcvideoengine2.cc
+++ b/talk/media/webrtc/webrtcvideoengine2.cc
@@ -2044,17 +2044,9 @@ void WebRtcVideoChannel2::WebRtcVideoSendStream::SetDimensions(
 
   encoder_config.encoder_specific_settings = ConfigureVideoEncoderSettings(
       codec_settings.codec, parameters_.options, is_screencast);
-
-  bool stream_reconfigured = stream_->ReconfigureVideoEncoder(encoder_config);
-
+  stream_->ReconfigureVideoEncoder(encoder_config);
   encoder_config.encoder_specific_settings = NULL;
 
-  if (!stream_reconfigured) {
-    LOG(LS_WARNING) << "Failed to reconfigure video encoder for dimensions: "
-                    << width << "x" << height;
-    return;
-  }
-
   parameters_.encoder_config = encoder_config;
 }