Bug 858723 - Fix _fdmsg test in async OS.File. r=froydnj
Bug 862117 - Move CSS rule classes relevant to image documents for cursor appearance (zoom in / zoom out) into layout/style/ImageDocument.css. r=roc, r=jaws

This stylesheet applies to all ImageDocuments, including those in frames. In old location for CSS rules, some full themes would not show cursors correctly, nor would ImageDocuments in frames. Image rotation CSS rule classes moved to layout/style/TopLevelImageDocument.css.
Bug 864280 - Robocop BaseTest cleanup. r=gbrown