use ClipOp instead of SkRegion for clipping

tests/CanvasStateHelpers.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "CanvasStateHelpers.h"
 #ifdef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG
 #include "SkCanvas.h"
@@ skipping 23 matching lines @@
     complex_layers_draw(canvas, left, top, right, bottom, spacer);
     canvas->unref();
     return true;
 }
 
 void complex_clips_draw(SkCanvas* canvas, int32_t left, int32_t top,
         int32_t right, int32_t bottom, int32_t clipOp, const SkRegion& localRegion) {
     canvas->save();
     SkRect clipRect = SkRect::MakeLTRB(SkIntToScalar(left), SkIntToScalar(top),
                                        SkIntToScalar(right), SkIntToScalar(bottom));
-    canvas->clipRect(clipRect, (SkRegion::Op) clipOp);
+    canvas->legacyClipRect(clipRect, (SkRegion::Op) clipOp);
     canvas->drawColor(SK_ColorBLUE);
     canvas->restore();
 
-    canvas->clipRegion(localRegion, (SkRegion::Op) clipOp);
+    canvas->legacyClipRegion(localRegion, (SkRegion::Op) clipOp);
     canvas->drawColor(SK_ColorBLUE);
 }
 
 extern "C" bool complex_clips_draw_from_canvas_state(SkCanvasState* state,
         int32_t left, int32_t top, int32_t right, int32_t bottom, int32_t clipOp,
         int32_t regionRects, int32_t* rectCoords) {
     SkCanvas* canvas = SkCanvasStateUtils::CreateFromCanvasState(state);
     if (!canvas) {
         return false;
     }
 
     SkRegion localRegion;
     for (int32_t i = 0; i < regionRects; ++i) {
         localRegion.op(rectCoords[0], rectCoords[1], rectCoords[2], rectCoords[3],
                        SkRegion::kUnion_Op);
         rectCoords += 4;
     }
 
     complex_clips_draw(canvas, left, top, right, bottom, clipOp, localRegion);
     canvas->unref();
     return true;
 }
 #endif // SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG