No bug, Automated HSTS preload list update from host bld-centos6-hp-018 - a=hsts-update
Bug 862892 - Support off-main-thread compilation for parallel execution. r=shu,bhackett
backout changesets d8f3694dd6df (bug 871961 pt 2) and b77d5e403c3d (bug 871961 pt 4) for making the browser crashy. r=me
Backed out changesets bde36c2eacc0 and 8dc40bbe844e (bug 862088) for causing bug 875769.
Merge m-c to inbound.