Bug 871431 - Raise background_perceivable priority's nice value to 7 to avoid jitter during surfing on the web with heavy loading on rendering. r=jlebar
Bug 850941 - Blob size is wrong in open activity after bluetooth image transfer. r=bent
Merge m-c to birch.
Bug 833795 - Sample offset on touch start. r=drs
Merge fx-team to m-c.