Fix line formatting when maxWidth == INF && align == kJustify && textDirection == kLtr

When maxWidth == INF, TextAlign::kJustify is equivalent to TextAlign::kStart. Currently ParagraphImpl::paint doesn't
paint anything when that happens.

Change-Id: I7b4a22c47a46718b1df11bdfa9b3e9ed0f20dddc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/629017
Reviewed-by: Julia Lavrova <jlavrova@google.com>
Commit-Queue: Julia Lavrova <jlavrova@google.com>
2 files changed