Fix artifacts on tiny stroked paths scaled up a lot.

Set doConsumeDegenerates to false when calling SkPath::Iter::next() for
all paths which are not in screen space. These lines are not degenerate
for world space paths.

Bug: skia:6987
Change-Id: I411faf594bf8a15891bfff08691e86679b7741ac
Reviewed-on: https://skia-review.googlesource.com/36881
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
5 files changed