use ClipOp instead of SkRegion for clipping

bench/AAClipBench.cpp

Index: bench/AAClipBench.cpp
diff --git a/bench/AAClipBench.cpp b/bench/AAClipBench.cpp
index 4cc9abe9fc9a17af655316b8d46023c1f01950bd..a56e6b8ebaa2638f2b0df389edb3fdd39f36bd64 100644
--- a/bench/AAClipBench.cpp
+++ b/bench/AAClipBench.cpp
@@ -59,9 +59,9 @@ protected:
             canvas->save();
 #if 1
             if (fDoPath) {
-                canvas->clipPath(fClipPath, SkRegion::kReplace_Op, fDoAA);
+                canvas->legacyClipPath(fClipPath, SkRegion::kReplace_Op, fDoAA);
             } else {
-                canvas->clipRect(fClipRect, SkRegion::kReplace_Op, fDoAA);
+                canvas->legacyClipRect(fClipRect, SkRegion::kReplace_Op, fDoAA);
             }
 
             canvas->drawRect(fDrawRect, paint);
@@ -129,7 +129,7 @@ protected:
             path.addRoundRect(temp, SkIntToScalar(3), SkIntToScalar(3));
             SkASSERT(path.isConvex());
 
-            canvas->clipPath(path,
+            canvas->legacyClipPath(path,
                              0 == depth ? SkRegion::kReplace_Op :
                                           SkRegion::kIntersect_Op,
                              fDoAA);