Do not apply hairline optimization for paths if nv_path_rendering is used

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index 747688ed8b6371a48e3af6f6c2d26285ede30888..b66125a11f009f76dde48b07990b69f2ba50c1c7 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -846,14 +846,6 @@ void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath,
         return;
     }
 
-    // can we cheat, and treat a thin stroke as a hairline w/ coverage
-    // if we can, we draw lots faster (raster device does this same test)
-    SkScalar hairlineCoverage;
-    bool doHairLine = SkDrawTreatAsHairline(paint, fContext->getMatrix(), &hairlineCoverage);
-    if (doHairLine) {
-        grPaint.setCoverage(SkScalarRoundToInt(hairlineCoverage * grPaint.getCoverage()));
-    }
-
     // If we have a prematrix, apply it to the path, optimizing for the case
     // where the original path can in fact be modified in place (even though
     // its parameter type is const).
@@ -883,10 +875,6 @@ void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath,
         pathPtr = &effectPath;
     }
 
-    if (!pathEffect && doHairLine) {
-        stroke.setHairlineStyle();
-    }
-
     if (paint.getMaskFilter()) {
         if (!stroke.isHairlineStyle()) {
             if (stroke.applyToPath(&tmpPath, *pathPtr)) {