stop using exotic clipops

third_party/WebKit/Source/platform/graphics/LoggingCanvas.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 481 matching lines @@
     scalarsArray->pushDouble(scalars[i]);
   return scalarsArray;
 }
 
 String clipOpName(SkClipOp op) {
   switch (op) {
     case SkClipOp::kDifference:
       return "kDifference_Op";
     case SkClipOp::kIntersect:
       return "kIntersect_Op";
-    case SkClipOp::kUnion:
-      return "kUnion_Op";
-    case SkClipOp::kXOR:
-      return "kXOR_Op";
-    case SkClipOp::kReverseDifference:
-      return "kReverseDifference_Op";
-    case SkClipOp::kReplace:
-      return "kReplace_Op";
     default:
       return "Unknown type";
   };
 }
 
 String saveLayerFlagsToString(SkCanvas::SaveLayerFlags flags) {
   String flagsString = "";
   if (flags & SkCanvas::kIsOpaque_SaveLayerFlag)
     flagsString.append("kIsOpaque_SaveLayerFlag ");
   if (flags & SkCanvas::kPreserveLCDText_SaveLayerFlag)
@@ skipping 412 matching lines @@
   pictureAsJSON->setArray("operations", canvas.log());
   return pictureAsJSON->toPrettyJSONString();
 }
 
 void showSkPicture(const SkPicture* picture) {
   WTFLogAlways("%s\n", pictureAsDebugString(picture).utf8().data());
 }
 #endif
 
 }  // namespace blink