Bug 844705 - Add comment to mReadFileThread. r=mrbkap
Bug 851470 - Rename nsDOMAttribute to Attr. r=Ms2ger

--HG--
rename : content/base/src/nsDOMAttribute.cpp => content/base/src/Attr.cpp
rename : content/base/src/nsDOMAttribute.h => content/base/src/Attr.h
Bug 851470 - Attr to WebIDL. r=Ms2ger