Bug 899990 - Null check xhr.response to avoid spammy JS exceptions. r=jdm, a=logspam
Bug 888304 - Disable touch events on Windows. r=jimm, sr=gavin, a=lsblakk
Bug 886227 - Fix intermittent orange. r=markh, a=bajaj
Bug 878156 - Mark all startup tabs as external. r=mfinkle, a=bajaj
Bug 891650 - Use mTransform instead of GetDTTransform() in Mask(). r=bas, a=bajaj

GetDTTransform includes the device offset. We need to avoid that in order for things to work properly.