In GrShape detect that stroked axis-aligned lines are rrects.

include/core/SkRect.h

Index: include/core/SkRect.h
diff --git a/include/core/SkRect.h b/include/core/SkRect.h
index 39cbb330f82b207cd6a508570fe41f1372353590..f25cac6e53dddc4890b61916a8fe99fefb038cb7 100644
--- a/include/core/SkRect.h
+++ b/include/core/SkRect.h
@@ -418,10 +418,9 @@ struct SK_API SkRect {
         return r;
     }
 
-    static SkRect SK_WARN_UNUSED_RESULT MakeLTRB(SkScalar l, SkScalar t, SkScalar r, SkScalar b) {
-        SkRect rect;
-        rect.set(l, t, r, b);
-        return rect;
+    static constexpr SkRect SK_WARN_UNUSED_RESULT MakeLTRB(SkScalar l, SkScalar t, SkScalar r,
+                                                           SkScalar b) {
+        return SkRect {l, t, r, b};
     }
 
     static SkRect SK_WARN_UNUSED_RESULT MakeXYWH(SkScalar x, SkScalar y, SkScalar w, SkScalar h) {