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/SampleApp.cpp b/samplecode/SampleApp.cpp
index 1acd975..776844c 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -1370,7 +1370,7 @@
 
     if (fUseClip) {
         canvas->drawColor(0xFFFF88FF);
-        canvas->clipPath(fClipPath, kIntersect_SkClipOp, true);
+        canvas->clipPath(fClipPath, SkCanvas::kIntersect_Op, true);
     }
 
     // Install a flags filter proxy canvas if needed
diff --git a/samplecode/SampleClip.cpp b/samplecode/SampleClip.cpp
index 82466ba..984a6e5 100644
--- a/samplecode/SampleClip.cpp
+++ b/samplecode/SampleClip.cpp
@@ -142,7 +142,7 @@
             canvas->save();
             for (size_t i = 0; i < SK_ARRAY_COUNT(gProc); ++i) {
                 canvas->save();
-                canvas->clipPath(clipPath, kIntersect_SkClipOp, SkToBool(aa));
+                canvas->clipPath(clipPath, SkCanvas::kIntersect_Op, SkToBool(aa));
 //                canvas->drawColor(SK_ColorWHITE);
                 gProc[i](canvas, SkToBool(aa));
                 canvas->restore();
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));
diff --git a/samplecode/SampleFatBits.cpp b/samplecode/SampleFatBits.cpp
index 65c929c..82eb25f 100644
--- a/samplecode/SampleFatBits.cpp
+++ b/samplecode/SampleFatBits.cpp
@@ -258,7 +258,7 @@
         fMinSurface->getCanvas()->save();
         SkRect r = fClipRect;
         r.inset(SK_Scalar1/3, SK_Scalar1/3);
-        fMinSurface->getCanvas()->clipRect(r, kIntersect_SkClipOp, true);
+        fMinSurface->getCanvas()->clipRect(r, SkCanvas::kIntersect_Op, true);
     }
     fMinSurface->getCanvas()->drawLine(pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, paint);
     if (fUseClip) {
diff --git a/samplecode/SampleIdentityScale.cpp b/samplecode/SampleIdentityScale.cpp
index ae6092a..8d1bc36 100644
--- a/samplecode/SampleIdentityScale.cpp
+++ b/samplecode/SampleIdentityScale.cpp
@@ -65,7 +65,7 @@
           SkRect r = { 100, 100, 356, 356 };
           SkPath clipPath;
           clipPath.addRoundRect(r, SkIntToScalar(5), SkIntToScalar(5));
-          canvas->clipPath(clipPath, kIntersect_SkClipOp, true);
+          canvas->clipPath(clipPath, SkCanvas::kIntersect_Op, SkToBool(1));
           text = "Scaled = 0";
         }
         canvas->drawBitmap( fBM, 100, 100, &paint );
diff --git a/samplecode/SampleLayers.cpp b/samplecode/SampleLayers.cpp
index faf4fde..c086eb0 100644
--- a/samplecode/SampleLayers.cpp
+++ b/samplecode/SampleLayers.cpp
@@ -254,7 +254,7 @@
         m.postTranslate(fCenter.x(), fCenter.y());
         path.transform(m);
 
-        canvas->clipPath(path, kIntersect_SkClipOp, true);
+        canvas->clipPath(path, SkCanvas::kIntersect_Op, true);
         const SkRect bounds = path.getBounds();
 
         SkPaint paint;