switched GrClipEdge to an enum class

Bug: skia:
Change-Id: Idf41580314a32739c70721530fc3ca48e566b044
Reviewed-on: https://skia-review.googlesource.com/70023
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
diff --git a/gm/convexpolyeffect.cpp b/gm/convexpolyeffect.cpp
index 0814b0b..ca27e28 100644
--- a/gm/convexpolyeffect.cpp
+++ b/gm/convexpolyeffect.cpp
@@ -192,7 +192,7 @@
             const SkPath* path = iter.get();
             SkScalar x = 0;
 
-            for (int et = 0; et < kGrProcessorEdgeTypeCnt; ++et) {
+            for (int et = 0; et < kGrClipEdgeTypeCnt; ++et) {
                 const SkMatrix m = SkMatrix::MakeTrans(x, y);
                 SkPath p;
                 path->transform(m, &p);
@@ -234,7 +234,7 @@
 
             SkScalar x = 0;
 
-            for (int et = 0; et < kGrProcessorEdgeTypeCnt; ++et) {
+            for (int et = 0; et < kGrClipEdgeTypeCnt; ++et) {
                 SkRect rect = *iter.get();
                 rect.offset(x, y);
                 GrClipEdgeType edgeType = (GrClipEdgeType) et;