Attach GrOptDrawState into shader building pipeline

src/gpu/GrRODrawState.cpp

Index: src/gpu/GrRODrawState.cpp
diff --git a/src/gpu/GrRODrawState.cpp b/src/gpu/GrRODrawState.cpp
index b79e8fce4340df6253c676610b6682a05dea7037..48c0674f5d8baf79d2a32eb6ebb37a440e3e0a1f 100644
--- a/src/gpu/GrRODrawState.cpp
+++ b/src/gpu/GrRODrawState.cpp
@@ -186,17 +186,7 @@ GrRODrawState::BlendOptFlags GrRODrawState::getBlendOpts(bool forceCoverage,
         return this->calcBlendOpts(true, srcCoeff, dstCoeff);
     }
 
-    if (0 == (fBlendOptFlags & kInvalid_BlendOptFlag)) {
-        *srcCoeff = fOptSrcBlend;
-        *dstCoeff = fOptDstBlend;
-        return fBlendOptFlags;
-    }
-
-    fBlendOptFlags = this->calcBlendOpts(forceCoverage, srcCoeff, dstCoeff);
-    fOptSrcBlend = *srcCoeff;
-    fOptDstBlend = *dstCoeff;
-
-    return fBlendOptFlags;
+    return this->calcBlendOpts(forceCoverage, srcCoeff, dstCoeff);
 }
 
 GrRODrawState::BlendOptFlags GrRODrawState::calcBlendOpts(bool forceCoverage,
@@ -370,13 +360,3 @@ bool GrRODrawState::srcAlphaWillBeOne() const {
     return (kA_GrColorComponentFlag & validComponentFlags) && 0xFF == GrColorUnpackA(color);
 }
 
-////////////////////////////////////////////////////////////////////////////////
-
-bool GrRODrawState::canIgnoreColorAttribute() const {
-    if (fBlendOptFlags & kInvalid_BlendOptFlag) {
-        this->getBlendOpts();
-    }
-    return SkToBool(fBlendOptFlags & (GrRODrawState::kEmitTransBlack_BlendOptFlag |
-                                      GrRODrawState::kEmitCoverage_BlendOptFlag));
-}
-