(3) Rename files to snake_case: move the files

Mechanically generated with this command:

tools_webrtc/do-rename.sh move all-renames.txt

Bug: webrtc:10159
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: I8b05b6eab9b9d18b29c2199bbea239e9add1e690
Reviewed-on: https://webrtc-review.googlesource.com/c/115481
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26225}

api/ortc/srtp_transport_interface.h

@@ -0,0 +1,48 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef API_ORTC_SRTPTRANSPORTINTERFACE_H_
+#define API_ORTC_SRTPTRANSPORTINTERFACE_H_
+
+#include "api/cryptoparams.h"
+#include "api/ortc/rtptransportinterface.h"
+#include "api/rtcerror.h"
+
+namespace webrtc {
+
+// The subclass of the RtpTransport which uses SRTP. The keying information
+// is explicitly passed in from the application.
+//
+// If using SDP and SDES (RFC4568) for signaling, then after applying the
+// answer, the negotiated keying information from the offer and answer would be
+// set and the SRTP would be active.
+//
+// Note that Edge's implementation of ORTC provides a similar API point, called
+// RTCSrtpSdesTransport:
+// https://msdn.microsoft.com/en-us/library/mt502527(v=vs.85).aspx
+class SrtpTransportInterface : public RtpTransportInterface {
+ public:
+  virtual ~SrtpTransportInterface() {}
+
+  // There are some limitations of the current implementation:
+  //  1. Send and receive keys must use the same crypto suite.
+  //  2. The keys can't be changed after initially set.
+  //  3. The keys must be set before creating a sender/receiver using the SRTP
+  //     transport.
+  // Set the SRTP keying material for sending RTP and RTCP.
+  virtual RTCError SetSrtpSendKey(const cricket::CryptoParams& params) = 0;
+
+  // Set the SRTP keying material for receiving RTP and RTCP.
+  virtual RTCError SetSrtpReceiveKey(const cricket::CryptoParams& params) = 0;
+};
+
+}  // namespace webrtc
+
+#endif  // API_ORTC_SRTPTRANSPORTINTERFACE_H_