Revert "Do not apply hairline optimization for paths if nv_path_rendering is used"

src/gpu/GrDrawState.h

Index: src/gpu/GrDrawState.h
diff --git a/src/gpu/GrDrawState.h b/src/gpu/GrDrawState.h
index 3de0b12e8593164cda09d74e851487c8c0d5e878..2e4d7f86c44397598192d3f2567965dac21e3b25 100644
--- a/src/gpu/GrDrawState.h
+++ b/src/gpu/GrDrawState.h
@@ -311,11 +311,15 @@ public:
         fCommon.fCoverage = GrColorPackRGBA(coverage, coverage, coverage, coverage);
     }
 
-    uint8_t getCoverage() const {
-        return GrColorUnpackR(fCommon.fCoverage);
+    /**
+     * Version of above that specifies 4 channel per-vertex color. The value
+     * should be premultiplied.
+     */
+    void setCoverage4(GrColor coverage) {
+        fCommon.fCoverage = coverage;
     }
 
-    GrColor getCoverageColor() const {
+    GrColor getCoverage() const {
         return fCommon.fCoverage;
     }