Revert "remove SK_SUPPORT_LEGACY_CLIP_REGIONOPS"

This reverts commit 8e7432b7f98dd592e529a0c8bb038d73ebfb0478.

Reason for revert: <INSERT REASONING HERE>

external/skia/bench/../tools/android/SkAndroidSDKCanvas.h:103:36: error: C++ requires a type specifier for all declarations
    void onClipRect(const SkRect&, ClipOp, ClipEdgeStyle) override;

Original change's description:
> remove SK_SUPPORT_LEGACY_CLIP_REGIONOPS
> 
> 
> switch over to SkClipOps now that SK_SUPPORT_LEGACY_CLIP_REGIONOPS is gone
> 
> BUG=skia:
> 
> Change-Id: Ifdc8b3746d508348a40cc009a4e529a1cb3c405d
> Reviewed-on: https://skia-review.googlesource.com/5714
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
> 

TBR=reed@google.com,reviews@skia.org
BUG=skia:
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: If26ea91d7464615e43c1d3d2f726e337ff56b55c
Reviewed-on: https://skia-review.googlesource.com/5721
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
diff --git a/samplecode/SampleComplexClip.cpp b/samplecode/SampleComplexClip.cpp
index ae8a20f..7439d91 100644
--- a/samplecode/SampleComplexClip.cpp
+++ b/samplecode/SampleComplexClip.cpp
@@ -79,14 +79,14 @@
         canvas->drawPath(clipB, paint);
 
         static const struct {
-            SkClipOp    fOp;
-            const char* fName;
+            SkCanvas::ClipOp fOp;
+            const char*      fName;
         } gOps[] = { //extra spaces in names for measureText
-            {kIntersect_SkClipOp,         "Isect "},
-            {kDifference_SkClipOp,        "Diff " },
-            {kUnion_SkClipOp,             "Union "},
-            {kXOR_SkClipOp,               "Xor "  },
-            {kReverseDifference_SkClipOp, "RDiff "}
+            {SkCanvas::kIntersect_Op,         "Isect "},
+            {SkCanvas::kDifference_Op,        "Diff " },
+            {SkCanvas::kUnion_Op,             "Union "},
+            {SkCanvas::kXOR_Op,               "Xor "  },
+            {SkCanvas::kReverseDifference_Op, "RDiff "}
         };
 
         canvas->translate(0, SkIntToScalar(40));