Added large room scenario to full-stack tests. Added thumbnail streams functionality to call test/v…

webrtc/test/call_test.h

Index: webrtc/test/call_test.h
diff --git a/webrtc/test/call_test.h b/webrtc/test/call_test.h
index b4101a4ca6ce0d6136e6e232a415bafe08232a2d..2a5d1de3e99f6a2b055908ccd579cf13dc732050 100644
--- a/webrtc/test/call_test.h
+++ b/webrtc/test/call_test.h
@@ -74,6 +74,13 @@ class CallTest : public ::testing::Test {
                         size_t num_audio_streams,
                         size_t num_flexfec_streams,
                         Transport* send_transport);
+
+  void CreateMatchingVideoReceiveConfigs(
+      const VideoSendStream::Config& video_send_config,
+      Transport* rtcp_send_transport);
+
+  // Creates receive configs for video_send_config_,
+  // for flexfec stream and for audio stream.
   void CreateMatchingReceiveConfigs(Transport* rtcp_send_transport);
 
   void CreateFrameGeneratorCapturerWithDrift(Clock* drift_clock,