Use SkTileMode instead of nested enum

Add guard to transition clients

Change-Id: Ia7a3e8f95722f91e84af262168dadf89a78707da
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/205720
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
diff --git a/bench/RotatedRectBench.cpp b/bench/RotatedRectBench.cpp
index 7623715..db4a792 100644
--- a/bench/RotatedRectBench.cpp
+++ b/bench/RotatedRectBench.cpp
@@ -101,7 +101,7 @@
             SkPoint pts[2] = { {0.0f, 0.0f}, {kRectW, kRectH} };
             SkColor colors[] = { color, SK_ColorBLUE };
             paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2,
-                                                         SkShader::kClamp_TileMode));
+                                                         SkTileMode::kClamp));
         }
 
         SkMatrix rotate;