Bug 908503: Clean up MP4Reader; r=cpearce
Bug 908503: Import libstagefright code from AOSP; r=cpearce
Bug 908503: Change to stagefright demuxer; r=cpearce
Bug 908503: Build config changes for libstagefright demuxer; r=glandium
Bug 908503: Remove Chrome demuxer; r=cpearce