use ClipOp instead of SkRegion for clipping

gm/complexclip2.cpp

Index: gm/complexclip2.cpp
diff --git a/gm/complexclip2.cpp b/gm/complexclip2.cpp
index f99d5b484db27672ec69abb344ea9e223ed85ecb..03dc52d85a4bdf9af43944a25917a03581fbdc16 100644
--- a/gm/complexclip2.cpp
+++ b/gm/complexclip2.cpp
@@ -170,19 +170,13 @@ protected:
                 for (int k = 0; k < 5; ++k) {
                     switch (fClip) {
                         case kRect_Clip:
-                            canvas->clipRect(fRects[k],
-                                             fOps[j*kRows+i][k],
-                                             fAntiAlias);
+                            canvas->legacyClipRect(fRects[k], fOps[j*kRows+i][k], fAntiAlias);
                             break;
                         case kRRect_Clip:
-                            canvas->clipRRect(fRRects[k],
-                                              fOps[j*kRows+i][k],
-                                              fAntiAlias);
+                            canvas->legacyClipRRect(fRRects[k], fOps[j*kRows+i][k], fAntiAlias);
                             break;
                         case kPath_Clip:
-                            canvas->clipPath(fPaths[k],
-                                             fOps[j*kRows+i][k],
-                                             fAntiAlias);
+                            canvas->legacyClipPath(fPaths[k], fOps[j*kRows+i][k], fAntiAlias);
                             break;
                     }
                 }