Revert of Refactoring: Merge VideoSenderConfig and AudioSenderConfig.

media/cast/test/utility/default_config.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_CAST_TEST_UTILITY_DEFAULT_CONFIG_H_
 #define MEDIA_CAST_TEST_UTILITY_DEFAULT_CONFIG_H_
 
 #include "media/cast/cast_config.h"
 
 namespace media {
 namespace cast {
 
 // Returns a FrameReceiverConfig initialized to "good-to-go" values.  This
 // specifies 48 kHz, 2-channel Opus-coded audio, with standard ssrc's, payload
 // type, and a dummy name.
 FrameReceiverConfig GetDefaultAudioReceiverConfig();
 
 // Returns a FrameReceiverConfig initialized to "good-to-go" values.  This
 // specifies VP8-coded video, with standard ssrc's, payload type, and a dummy
 // name.
 FrameReceiverConfig GetDefaultVideoReceiverConfig();
 
-// Returns a FrameSenderConfig initialized to default values. This means
+// Returns a AudioSenderConfig initialized to default values. This means
 // 48 kHz, 2-channel Opus-coded audio. Default values for SSRCs and payload
 // type.
-FrameSenderConfig GetDefaultAudioSenderConfig();
+AudioSenderConfig GetDefaultAudioSenderConfig();
 
-// Returns a FrameSenderConfig initialized to default values. This means
+// Returns a VideoSenderConfig initialized to default values. This means
 // 30 Hz VP8 coded code. Default values for SSRCs and payload type.
-FrameSenderConfig GetDefaultVideoSenderConfig();
+VideoSenderConfig GetDefaultVideoSenderConfig();
 
 // Returns a callback that does nothing.
 CreateVideoEncodeAcceleratorCallback
     CreateDefaultVideoEncodeAcceleratorCallback();
 
 // Returns a callback that does nothing.
 CreateVideoEncodeMemoryCallback CreateDefaultVideoEncodeMemoryCallback();
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_TEST_UTILITY_DEFAULT_CONFIG_H_