use ClipOp instead of SkRegion for clipping

gm/simpleaaclip.cpp

Index: gm/simpleaaclip.cpp
diff --git a/gm/simpleaaclip.cpp b/gm/simpleaaclip.cpp
index 950a1c025efada44bf2ce605cefac966a19d595f..4fbc3881f3695be41b44b1e3a9bcac8ad2b11fca 100644
--- a/gm/simpleaaclip.cpp
+++ b/gm/simpleaaclip.cpp
@@ -104,12 +104,12 @@ protected:
         // create the clip mask with the supplied boolean op
         if (kPath_GeomType == fGeomType) {
             // path-based case
-            canvas->clipPath(fBasePath, SkRegion::kReplace_Op, true);
-            canvas->clipPath(fRectPath, op, true);
+            canvas->legacyClipPath(fBasePath, SkRegion::kReplace_Op, true);
+            canvas->legacyClipPath(fRectPath, op, true);
         } else {
             // rect-based case
-            canvas->clipRect(fBase, SkRegion::kReplace_Op, true);
-            canvas->clipRect(fRect, op, true);
+            canvas->legacyClipRect(fBase, SkRegion::kReplace_Op, true);
+            canvas->legacyClipRect(fRect, op, true);
         }
 
         // draw a rect that will entirely cover the clip mask area