Cast: Update simulator tool with more inputs.

media/cast/test/utility/default_config.h

Index: media/cast/test/utility/default_config.h
diff --git a/media/cast/test/utility/default_config.h b/media/cast/test/utility/default_config.h
index eaa3c96415c6c5d94960d8b67e4eeea33248021e..2cc52a7a72992b84340a4d0a2b7a959c368c61c0 100644
--- a/media/cast/test/utility/default_config.h
+++ b/media/cast/test/utility/default_config.h
@@ -20,6 +20,15 @@ FrameReceiverConfig GetDefaultAudioReceiverConfig();
 // name.
 FrameReceiverConfig GetDefaultVideoReceiverConfig();
 
+// Returns a AudioSenderConfig initialized to default values. This means
+// 48 kHz, 2-channel Opus-coded audio. Default values for SSRCs and payload
+// type.
+AudioSenderConfig GetDefaultAudioSenderConfig();
+
+// Returns a VideoSenderConfig initialized to default values. This means
+// 30 Hz VP8 coded code. Default values for SSRCs and payload type.
+VideoSenderConfig GetDefaultVideoSenderConfig();
+
 // Returns a callback that does nothing.
 CreateVideoEncodeAcceleratorCallback
     CreateDefaultVideoEncodeAcceleratorCallback();