Change SkShader;asFragmentProcessor signature to no longer take skpaint\grcolor*

src/effects/gradients/SkSweepGradient.cpp

Index: src/effects/gradients/SkSweepGradient.cpp
diff --git a/src/effects/gradients/SkSweepGradient.cpp b/src/effects/gradients/SkSweepGradient.cpp
index c6699e87e0fabe0877c46013da16a8339879e0e7..40b0f8288bfadf81865fe8909b994340f0edc65a 100644
--- a/src/effects/gradients/SkSweepGradient.cpp
+++ b/src/effects/gradients/SkSweepGradient.cpp
@@ -167,6 +167,7 @@ void SkSweepGradient::SweepGradientContext::shadeSpan16(int x, int y, uint16_t*
 #if SK_SUPPORT_GPU
 
 #include "SkGr.h"
+#include "effects/GrExtractAlphaFragmentProcessor.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 
 class GrGLSweepGradient : public GrGLGradientEffect {
@@ -226,7 +227,7 @@ private:
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSweepGradient);
 
-GrFragmentProcessor* GrSweepGradient::TestCreate(GrProcessorTestData* d) {
+const GrFragmentProcessor* GrSweepGradient::TestCreate(GrProcessorTestData* d) {
     SkPoint center = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()};
 
     SkColor colors[kMaxRandomGradientColors];
@@ -236,12 +237,11 @@ GrFragmentProcessor* GrSweepGradient::TestCreate(GrProcessorTestData* d) {
     int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tmIgnored);
     SkAutoTUnref<SkShader> shader(SkGradientShader::CreateSweep(center.fX, center.fY,
                                                                 colors, stops, colorCount));
-    SkPaint paint;
-    GrFragmentProcessor* fp;
-    GrColor paintColor;
-    SkAssertResult(shader->asFragmentProcessor(d->fContext, paint,
-                                               GrTest::TestMatrix(d->fRandom), nullptr,
-                                               &paintColor, d->fProcDataManager, &fp));
+    const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext,
+                                                                GrTest::TestMatrix(d->fRandom),
+                                                                NULL, kNone_SkFilterQuality,
+                                                                d->fProcDataManager);
+    GrAlwaysAssert(fp);
     return fp;
 }
 
@@ -270,38 +270,29 @@ void GrGLSweepGradient::emitCode(EmitArgs& args) {
 
 /////////////////////////////////////////////////////////////////////
 
-bool SkSweepGradient::asFragmentProcessor(GrContext* context, const SkPaint& paint,
-                                          const SkMatrix& viewM,
-                                          const SkMatrix* localMatrix, GrColor* paintColor,
-                                          GrProcessorDataManager* procDataManager,
-                                          GrFragmentProcessor** effect)  const {
+const GrFragmentProcessor* SkSweepGradient::asFragmentProcessor(
+                                                    GrContext* context,
+                                                    const SkMatrix& viewM,
+                                                    const SkMatrix* localMatrix,
+                                                    SkFilterQuality,
+                                                    GrProcessorDataManager* procDataManager) const {
 
     SkMatrix matrix;
     if (!this->getLocalMatrix().invert(&matrix)) {
-        return false;
+        return nullptr;
     }
     if (localMatrix) {
         SkMatrix inv;
         if (!localMatrix->invert(&inv)) {
-            return false;
+            return nullptr;
         }
         matrix.postConcat(inv);
     }
     matrix.postConcat(fPtsToUnit);
 
-    *effect = GrSweepGradient::Create(context, procDataManager, *this, matrix);
-    *paintColor = SkColor2GrColorJustAlpha(paint.getColor());
-
-    return true;
-}
-
-#else
-
-bool SkSweepGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix&,
-                                          const SkMatrix*, GrColor*, GrProcessorDataManager*,
-                                          GrFragmentProcessor**)  const {
-    SkDEBUGFAIL("Should not call in GPU-less build");
-    return false;
+    SkAutoTUnref<const GrFragmentProcessor> inner(
+        GrSweepGradient::Create(context, procDataManager, *this, matrix));
+    return GrExtractAlphaFragmentProcessor::Create(inner);
 }
 
 #endif