Additional changes I needed to make it work: - Modified a header in RTPFile.cc. Every other file is using "webrtc/engine_configurations.h" instead. - Disabled flag 4373 for msvs because it was disabled in build/common.gypi. BUG=webrtc:6038 TBR=kwiberg@webrtc.org NOTRY=True Review-Url: https://codereview.webrtc.org/2187563005 Cr-Commit-Position: refs/heads/master@{#13628}