Revert[2] "remove SK_SUPPORT_LEGACY_CLIP_REGIONOPS"

This reverts commit a129dfef2aaab0b5995cdf1ab7b2cdd41c29cf72.

BUG=skia:

Change-Id: I717de6e5fcd4516aa684b014b1414b0f82ac2b91
Reviewed-on: https://skia-review.googlesource.com/5722
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Derek Sollenberger <djsollen@google.com>
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index 776844c..1acd975 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -1370,7 +1370,7 @@
 
     if (fUseClip) {
         canvas->drawColor(0xFFFF88FF);
-        canvas->clipPath(fClipPath, SkCanvas::kIntersect_Op, true);
+        canvas->clipPath(fClipPath, kIntersect_SkClipOp, true);
     }
 
     // Install a flags filter proxy canvas if needed
diff --git a/samplecode/SampleClip.cpp b/samplecode/SampleClip.cpp
index 984a6e5..82466ba 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, SkCanvas::kIntersect_Op, SkToBool(aa));
+                canvas->clipPath(clipPath, kIntersect_SkClipOp, SkToBool(aa));
 //                canvas->drawColor(SK_ColorWHITE);
                 gProc[i](canvas, SkToBool(aa));
                 canvas->restore();
diff --git a/samplecode/SampleComplexClip.cpp b/samplecode/SampleComplexClip.cpp
index 7439d91..ae8a20f 100644
--- a/samplecode/SampleComplexClip.cpp
+++ b/samplecode/SampleComplexClip.cpp
@@ -79,14 +79,14 @@
         canvas->drawPath(clipB, paint);
 
         static const struct {
-            SkCanvas::ClipOp fOp;
-            const char*      fName;
+            SkClipOp    fOp;
+            const char* fName;
         } gOps[] = { //extra spaces in names for measureText
-            {SkCanvas::kIntersect_Op,         "Isect "},
-            {SkCanvas::kDifference_Op,        "Diff " },
-            {SkCanvas::kUnion_Op,             "Union "},
-            {SkCanvas::kXOR_Op,               "Xor "  },
-            {SkCanvas::kReverseDifference_Op, "RDiff "}
+            {kIntersect_SkClipOp,         "Isect "},
+            {kDifference_SkClipOp,        "Diff " },
+            {kUnion_SkClipOp,             "Union "},
+            {kXOR_SkClipOp,               "Xor "  },
+            {kReverseDifference_SkClipOp, "RDiff "}
         };
 
         canvas->translate(0, SkIntToScalar(40));
diff --git a/samplecode/SampleFatBits.cpp b/samplecode/SampleFatBits.cpp
index 82eb25f..65c929c 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, SkCanvas::kIntersect_Op, true);
+        fMinSurface->getCanvas()->clipRect(r, kIntersect_SkClipOp, 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 8d1bc36..ae6092a 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, SkCanvas::kIntersect_Op, SkToBool(1));
+          canvas->clipPath(clipPath, kIntersect_SkClipOp, true);
           text = "Scaled = 0";
         }
         canvas->drawBitmap( fBM, 100, 100, &paint );
diff --git a/samplecode/SampleLayers.cpp b/samplecode/SampleLayers.cpp
index c086eb0..faf4fde 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, SkCanvas::kIntersect_Op, true);
+        canvas->clipPath(path, kIntersect_SkClipOp, true);
         const SkRect bounds = path.getBounds();
 
         SkPaint paint;