use ClipOp instead of SkRegion for clipping

samplecode/SampleFatBits.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
@@ skipping 267 matching lines @@
         apply_grid(pts, 2);
     }
 
     erase(fMinSurface);
     this->setupPaint(&paint);
     paint.setColor(FAT_PIXEL_COLOR);
     if (fUseClip) {
         fMinSurface->getCanvas()->save();
         SkRect r = fClipRect;
         r.inset(SK_Scalar1/3, SK_Scalar1/3);
-        fMinSurface->getCanvas()->clipRect(r, SkRegion::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) {
         fMinSurface->getCanvas()->restore();
     }
     this->copyMinToMax();
 
     SkCanvas* max = fMaxSurface->getCanvas();
 
     fMatrix.mapPoints(pts, 2);
@@ skipping 217 matching lines @@
 
 private:
 
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new DrawLineView; }
 static SkViewRegister reg(MyFactory);