Add gm that tests shaded stroked rectangles.

include/core/SkPaint.h

Index: include/core/SkPaint.h
diff --git a/include/core/SkPaint.h b/include/core/SkPaint.h
index 293ffedc12aee6efac85be0ab93d685e73b859c5..6f5fb4bad80565db6cb80f2e7acc84a5811d2776 100644
--- a/include/core/SkPaint.h
+++ b/include/core/SkPaint.h
@@ -409,9 +409,9 @@ public:
         kRound_Cap,     //!< begin/end contours with a semi-circle extension
         kSquare_Cap,    //!< begin/end contours with a half square extension
 
-        kCapCount,
         kDefault_Cap = kButt_Cap
     };

[robertphillips, 2016/07/06 15:01:47]

Have we given up on the whole 'kLast_Cap' thing ?

[bsalomon, 2016/07/06 15:57:53]

Done

+    static constexpr int kCapCount = 3;
 
     /** Join enum specifies the settings for the paint's strokejoin. This is
         the treatment that is applied to corners in paths and rectangles.
@@ -421,9 +421,9 @@ public:
         kRound_Join,    //!< connect path segments with a round join
         kBevel_Join,    //!< connect path segments with a flat bevel join
 
-        kJoinCount,
         kDefault_Join = kMiter_Join
     };
+    static constexpr int kJoinCount = 3;
 
     /** Return the paint's stroke cap type, controlling how the start and end
         of stroked lines and paths are treated.