diff -r 000000000000 -r 6474c204b198 media/webrtc/signaling/src/media-conduit/MediaConduitErrors.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/webrtc/signaling/src/media-conduit/MediaConduitErrors.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+  * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+#ifndef MEDIA_SESSION_ERRORS_H_
+#define MEDIA_SESSION_ERRORS_H_
+
+namespace mozilla
+{
+enum MediaConduitErrorCode
+{
+kMediaConduitNoError = 0,              // 0 for Success,greater than 0 imples error
+kMediaConduitSessionNotInited = 10100, // Session not initialized.10100 serves as
+                                       // base for the conduit errors
+kMediaConduitMalformedArgument,        // Malformed input to Conduit API
+kMediaConduitCaptureError,             // WebRTC capture APIs failed
+kMediaConduitInvalidSendCodec,         // Wrong Send codec
+kMediaConduitInvalidReceiveCodec,      // Wrong Recv Codec
+kMediaConduitCodecInUse,               // Already applied Codec
+kMediaConduitInvalidRenderer,          // Null or Wrong Renderer object
+kMediaConduitRendererFail,             // Add Render called multiple times
+kMediaConduitSendingAlready,           // Engine already trasmitting
+kMediaConduitReceivingAlready,         // Engine already receiving
+kMediaConduitTransportRegistrationFail,// Null or wrong transport interface
+kMediaConduitInvalidTransport,         // Null or wrong transport interface
+kMediaConduitChannelError,             // Configuration Error
+kMediaConduitSocketError,              // Media Engine transport socket error
+kMediaConduitRTPRTCPModuleError,       // Couldn't start RTP/RTCP processing
+kMediaConduitRTPProcessingFailed,      // Processing incoming RTP frame failed
+kMediaConduitUnknownError,             // More information can be found in logs
+kMediaConduitExternalRecordingError,   // Couldn't start external recording
+kMediaConduitRecordingError,           // Runtime recording error
+kMediaConduitExternalPlayoutError,     // Couldn't start external playout
+kMediaConduitPlayoutError,             // Runtime playout error
+kMediaConduitMTUError,                 // Can't set MTU
+kMediaConduitRTCPStatusError,          // Can't set RTCP mode
+kMediaConduitKeyFrameRequestError,     // Can't set KeyFrameRequest mode
+kMediaConduitNACKStatusError           // Can't set NACK mode
+};
+
+}
+
+#endif
+