Pull out shader-specific caps into GrShaderCaps and GrGLSLCaps

src/gpu/effects/GrPorterDuffXferProcessor.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 "effects/GrPorterDuffXferProcessor.h"
 
 #include "GrBlend.h"
@@ skipping 333 matching lines @@
     } else if (optFlags & kIgnoreCoverage_OptFlag) {
         fPrimaryOutputType = kColor_PrimaryOutputType;
         return;
     }
 
     // If we do have coverage determine whether it matters.  Dual source blending is expensive so
     // we don't do it if we are doing coverage drawing.  If we aren't then We always do dual source
     // blending if we have any effective coverage stages OR the geometry processor doesn't emits
     // solid coverage.
     if (!(optFlags & kSetCoverageDrawing_OptFlag) && !hasSolidCoverage) {
-        if (caps.dualSourceBlendingSupport()) {
+        if (caps.shaderCaps()->dualSourceBlendingSupport()) {
             if (kZero_GrBlendCoeff == fDstBlend) {
                 // write the coverage value to second color
                 fSecondaryOutputType = kCoverage_SecondaryOutputType;
                 fDstBlend = kIS2C_GrBlendCoeff;
             } else if (kSA_GrBlendCoeff == fDstBlend) {
                 // SA dst coeff becomes 1-(1-SA)*coverage when dst is partially covered.
                 fSecondaryOutputType = kCoverageISA_SecondaryOutputType;
                 fDstBlend = kIS2C_GrBlendCoeff;
             } else if (kSC_GrBlendCoeff == fDstBlend) {
                 // SA dst coeff becomes 1-(1-SA)*coverage when dst is partially covered.
@@ skipping 296 matching lines @@
             break;
     }
 
     output->fWillBlendWithDst = false;
 }
 
 bool GrPorterDuffXPFactory::willReadDstColor(const GrDrawTargetCaps& caps,
                                              const GrProcOptInfo& colorPOI,
                                              const GrProcOptInfo& coveragePOI) const {
     // We can always blend correctly if we have dual source blending.
-    if (caps.dualSourceBlendingSupport()) {
+    if (caps.shaderCaps()->dualSourceBlendingSupport()) {
         return false;
     }
 
     if (this->canTweakAlphaForCoverage()) {
         return false;
     }
 
     bool srcAIsOne = colorPOI.isOpaque();
 
     if (kZero_GrBlendCoeff == fDstCoeff) {
@@ skipping 18 matching lines @@
 GR_DEFINE_XP_FACTORY_TEST(GrPorterDuffXPFactory);
 
 GrXPFactory* GrPorterDuffXPFactory::TestCreate(SkRandom* random,
                                                GrContext*,
                                                const GrDrawTargetCaps&,
                                                GrTexture*[]) {
     SkXfermode::Mode mode = SkXfermode::Mode(random->nextULessThan(SkXfermode::kLastCoeffMode));
     return GrPorterDuffXPFactory::Create(mode);
 }