Fix SkBBoxRecord to correctly handle SkRect arguments that are inverted rects.
Fix SkBBoxRecord to correctly handle SkRect arguments that are inverted rects.

BUG=http://code.google.com/p/skia/issues/detail?id=1014
TEST=gm strokerect with --tileGrid
Review URL: https://codereview.appspot.com/6945071

csulmone/skia,csulmone/skia,csulmone/skia,csulmone/skia