WebRTC and Node.js guru needed

I have an existing application utilizing WebRTC and Node.js which needs an update, and the developer who built the original code is unavailable at the moment. The change is fairly straightforward; my understanding is that the GetUserMedia call in WebRTC has recently been updated, and as a result, my application has broken... therefore what I need is for someone who is versed in WebRTC to go through the code and update all the GetUserMedia calls. The code base is fairly large, so please bid this job assuming 20 hours of your time. It would probably take the original developer 10 hours to complete this task, so I am doubling that to sand bag for someone not directly familiar with the code. If it turns out that the task takes more than 20 hours before I am satisfied with the results, I would pay you proportionately for the additional time. If, on the other hand, you are able to accomplish this task to my satisfaction in less than 20 hours, I will still pay you a minimum of 20 hours. Please only bid on this project if you have actual WebRTC experience. If your Guru profile does not already include it, please provide a resume, or brief work and education history. Also sending URL's to examples of your work, especially anything directly related to WebRTC and/or Node, is the best way to increase your chances of being selected for this project. Also, please note you will be required to sign an NDA in order to access the code base, so please do not bid if you have any other agreements or NDA's that you are under which would prevent you from signing an NDA in the video communication space. Thank you and I look forward to your bid...