Revert "Reland "Revert "Use flat version of path-direction enum"""

This reverts commit 7cda6f37439f69b1e4a9b08147f9c12ddad1bddb.

Reason for revert: legacy convexity code removed -- google3 should be ok

Original change's description:
> Reland "Revert "Use flat version of path-direction enum""
>
> This reverts commit 1792b19485cacb0c950a3c0ea0aab763a8d43176.
>
> Reason for revert: need to update legacy_convexity, still used by google3
>
> Original change's description:
> > Revert "Revert "Use flat version of path-direction enum""
> >
> > This reverts commit 0dacc6b7d3027e8181311a61f7ca798be52a0250.
> >
> > Change-Id: Ie103e9f36b07e4ee256a3688a4decf3a6dd74314
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255832
> > Auto-Submit: Mike Reed <reed@google.com>
> > Reviewed-by: Mike Reed <reed@google.com>
> > Commit-Queue: Mike Reed <reed@google.com>
>
> TBR=reed@google.com
>
> Change-Id: I0ecea0eb8a237298c6b908cc4bfd1cacdfc5b900
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255976
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>

TBR=reed@google.com

Change-Id: I3529139bb391c4f62ce5cd0744cdf38a13b71d78
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255984
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
diff --git a/src/gpu/geometry/GrShape.cpp b/src/gpu/geometry/GrShape.cpp
index 4fc3472..bb4f92b 100644
--- a/src/gpu/geometry/GrShape.cpp
+++ b/src/gpu/geometry/GrShape.cpp
@@ -273,7 +273,7 @@
             case Type::kRRect:
                 fRRectData.fRRect.writeToMemory(key);
                 key += SkRRect::kSizeInMemory / sizeof(uint32_t);
-                *key = (fRRectData.fDir == SkPath::kCCW_Direction) ? (1 << 31) : 0;
+                *key = (fRRectData.fDir == SkPathDirection::kCCW) ? (1 << 31) : 0;
                 *key |= fRRectData.fInverted ? (1 << 30) : 0;
                 *key++ |= fRRectData.fStart;
                 SkASSERT(fRRectData.fStart < 8);
@@ -507,7 +507,7 @@
 void GrShape::attemptToSimplifyPath() {
     SkRect rect;
     SkRRect rrect;
-    SkPath::Direction rrectDir;
+    SkPathDirection rrectDir;
     unsigned rrectStart;
     bool inverted = this->path().isInverseFillType();
     SkPoint pts[2];