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

src/effects/gradients/SkLinearGradient.cpp

Index: src/effects/gradients/SkLinearGradient.cpp
diff --git a/src/effects/gradients/SkLinearGradient.cpp b/src/effects/gradients/SkLinearGradient.cpp
index 86142fda73e077bb3de2be6360014995b42f60f1..df27ebcb17ef9e9eec64d38fbcd30b93527ffe60 100644
--- a/src/effects/gradients/SkLinearGradient.cpp
+++ b/src/effects/gradients/SkLinearGradient.cpp
@@ -439,6 +439,7 @@ void SkLinearGradient::LinearGradientContext::shadeSpan16(int x, int y,
 
 #if SK_SUPPORT_GPU
 
+#include "effects/GrExtractAlphaFragmentProcessor.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 #include "SkGr.h"
 
@@ -507,7 +508,7 @@ private:
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradient);
 
-GrFragmentProcessor* GrLinearGradient::TestCreate(GrProcessorTestData* d) {
+const GrFragmentProcessor* GrLinearGradient::TestCreate(GrProcessorTestData* d) {
     SkPoint points[] = {{d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()},
                         {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}};
 
@@ -519,12 +520,9 @@ GrFragmentProcessor* GrLinearGradient::TestCreate(GrProcessorTestData* d) {
     SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points,
                                                                  colors, stops, colorCount,
                                                                  tm));
-    SkPaint paint;
-    GrColor paintColor;
-    GrFragmentProcessor* fp;
-    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;
 }
 
@@ -541,40 +539,29 @@ void GrGLLinearGradient::emitCode(EmitArgs& args) {
 
 /////////////////////////////////////////////////////////////////////
 
-bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& paint,
-                                           const SkMatrix& viewm, const SkMatrix* localMatrix,
-                                           GrColor* paintColor,
-                                           GrProcessorDataManager* procDataManager,
-                                           GrFragmentProcessor** fp)  const {
+const GrFragmentProcessor* SkLinearGradient::asFragmentProcessor(
+    GrContext* context, const SkMatrix& viewm, const SkMatrix* localMatrix, SkFilterQuality,
+    GrProcessorDataManager* procDataManager)  const {
     SkASSERT(context);
 
     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);
 
-    *paintColor = SkColor2GrColorJustAlpha(paint.getColor());
-    *fp = GrLinearGradient::Create(context, procDataManager, *this, matrix, fTileMode);
-
-    return true;
+    SkAutoTUnref<const GrFragmentProcessor> inner(
+        GrLinearGradient::Create(context, procDataManager, *this, matrix, fTileMode));
+    return GrExtractAlphaFragmentProcessor::Create(inner);
 }
 
-#else
-
-bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix&,
-                                           const SkMatrix*, GrColor*, GrProcessorDataManager*,
-                                           GrFragmentProcessor**)  const {
-    SkDEBUGFAIL("Should not call in GPU-less build");
-    return false;
-}
 
 #endif