Remove SK_SUPPORT_LEGACY_GRADIENT_DITHERING from Skia proper

gm/gradients_2pt_conical.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 "gm.h"
 #include "SkGradientShader.h"
 
@@ skipping 287 matching lines @@
 enum GradCaseType { // these must match the order in gGradCases
     kOutside_GradCaseType,
     kInside_GradCaseType,
     kEdge_GradCaseType,
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 class ConicalGradientsGM : public GM {
 public:
-    ConicalGradientsGM(GradCaseType gradCaseType) {
+    ConicalGradientsGM(GradCaseType gradCaseType, bool dither)
+        : fGradCaseType(gradCaseType)
+        , fDither(dither) {
         this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD));
-        fName.printf("gradients_2pt_conical_%s", gGradCases[gradCaseType].fName);
-        fGradCaseType = gradCaseType;
+        fName.printf("gradients_2pt_conical_%s%s", gGradCases[gradCaseType].fName,
+                     fDither ? "" : "_nodither");
     }
 
 protected:
     SkString onShortName() {
         return fName;
     }
 
     virtual SkISize onISize() { return SkISize::Make(840, 815); }
 
     virtual void onDraw(SkCanvas* canvas) {
 
         SkPoint pts[2] = {
             { 0, 0 },
             { SkIntToScalar(100), SkIntToScalar(100) }
         };
         SkShader::TileMode tm = SkShader::kClamp_TileMode;
         SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
         SkPaint paint;
         paint.setAntiAlias(true);
+        paint.setDither(fDither);
 
         canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
 
         const GradMaker* gradMaker = gGradCases[fGradCaseType].fMaker;
         const int count = gGradCases[fGradCaseType].fCount;
 
         for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
             canvas->save();
             for (int j = 0; j < count; j++) {
                 SkMatrix scale = SkMatrix::I();
@@ skipping 12 matching lines @@
             canvas->restore();
             canvas->translate(SkIntToScalar(120), 0);
         }
     }
 
 private:
     typedef GM INHERITED;
 
     GradCaseType fGradCaseType;
     SkString fName;
+    bool fDither;
 };
 ///////////////////////////////////////////////////////////////////////////////
 
-static GM* MyFactory1(void*) { return new ConicalGradientsGM(kInside_GradCaseType); }
-static GMRegistry reg1(MyFactory1);
+DEF_GM( return new ConicalGradientsGM(kInside_GradCaseType, true); )
+DEF_GM( return new ConicalGradientsGM(kOutside_GradCaseType, true); )
+DEF_GM( return new ConicalGradientsGM(kEdge_GradCaseType, true); )
 
-static GM* MyFactory2(void*) { return new ConicalGradientsGM(kOutside_GradCaseType); }
-static GMRegistry reg2(MyFactory2);
+DEF_GM( return new ConicalGradientsGM(kInside_GradCaseType, false); )
+DEF_GM( return new ConicalGradientsGM(kOutside_GradCaseType, false); )
+DEF_GM( return new ConicalGradientsGM(kEdge_GradCaseType, false); )
 
-static GM* MyFactory3(void*) { return new ConicalGradientsGM(kEdge_GradCaseType); }
-static GMRegistry reg3(MyFactory3);
 }