Do not apply hairline optimization for paths if nv_path_rendering is used

src/gpu/GrDrawState.cpp

Index: src/gpu/GrDrawState.cpp
diff --git a/src/gpu/GrDrawState.cpp b/src/gpu/GrDrawState.cpp
index 1743604a19a505a498309f229aa90f390f9353b8..1bbcc26325cd7b79d9a877b462fd9585a64dc440 100644
--- a/src/gpu/GrDrawState.cpp
+++ b/src/gpu/GrDrawState.cpp
@@ -54,7 +54,6 @@ void GrDrawState::setFromPaint(const GrPaint& paint, const SkMatrix& vm, GrRende
     this->enableState(GrDrawState::kClip_StateBit);
 
     this->setColor(paint.getColor());
-    this->setCoverage4(paint.getCoverage());
     this->setState(GrDrawState::kDither_StateBit, paint.isDither());
     this->setState(GrDrawState::kHWAntialias_StateBit, paint.isAntiAlias());
 
@@ -220,7 +219,7 @@ bool GrDrawState::srcAlphaWillBeOne() const {
 
     // Check whether coverage is treated as color. If so we run through the coverage computation.
     if (this->isCoverageDrawing()) {
-        GrColor coverageColor = this->getCoverage();
+        GrColor coverageColor = this->getCoverageColor();
         GrColor oldColor = color;
         color = 0;
         for (int c = 0; c < 4; ++c) {
@@ -312,7 +311,7 @@ GrDrawState::BlendOptFlags GrDrawState::getBlendOpts(bool forceCoverage,
 
     bool covIsZero = !this->isCoverageDrawing() &&
                      !this->hasCoverageVertexAttribute() &&
-                     0 == this->getCoverage();
+                     0 == this->getCoverageColor();
     // When coeffs are (0,1) there is no reason to draw at all, unless
     // stenciling is enabled. Having color writes disabled is effectively
     // (0,1). The same applies when coverage is known to be 0.
@@ -327,7 +326,7 @@ GrDrawState::BlendOptFlags GrDrawState::getBlendOpts(bool forceCoverage,
 
     // check for coverage due to constant coverage, per-vertex coverage, or coverage stage
     bool hasCoverage = forceCoverage ||
-                       0xffffffff != this->getCoverage() ||
+                       0xffffffff != this->getCoverageColor() ||
                        this->hasCoverageVertexAttribute() ||
                        fCoverageStages.count() > 0;