Cast:Adding cast_transport_config and cleaning up

media/cast/transport/cast_transport_config.cc

+// Copyright 2013 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.
+
+#include "media/cast/transport/cast_transport_config.h"
+
+namespace media {
+namespace cast {
+namespace transport {
+
+namespace {
+  const int kDefaultRtpHistoryMs = 1000;
+  const int kDefaultRtpMaxDelayMs = 100;
+}  // namespace
+
+CastTransportConfig::CastTransportConfig()
+    : sender_ssrc(0),
+      rtp_history_ms(kDefaultRtpHistoryMs),
+      rtp_max_delay_ms(kDefaultRtpMaxDelayMs),
+      rtp_payload_type(0),
+      frequency(0),
+      channels(0),
+      aes_key (""),
+      aes_iv_mask(0) {}
+
+CastTransportConfig::~CastTransportConfig() {}
+
+EncodedVideoFrame::EncodedVideoFrame() {}
+EncodedVideoFrame::~EncodedVideoFrame() {}
+
+EncodedAudioFrame::EncodedAudioFrame() {}
+EncodedAudioFrame::~EncodedAudioFrame() {}
+
+// static
+void PacketReceiver::DeletePacket(const uint8* packet) {
+  delete [] packet;
+}
+
+}  // namespace transport
+}  // namespace cast
+}  // namespace media