Revert "Add kAAHairline to GpuPathRenderers"

This reverts commit 880b9d302fadd6449a511b8664682f16cde7dd9c.

Reason for revert: Appears to be breaking serialization.
See https://ci.chromium.org/raw/build/logs.chromium.org/skia/20180718T201711.486335899Z_000000000077bbff/+/annotations

Original change's description:
> Add kAAHairline to GpuPathRenderers
> 
> With the upcoming ccpr stroking, this will no longer be the only path
> renderer that can handle hairlines.
> 
> Bug: skia:
> Change-Id: Idf2543f053c8603c80fcd647ca18ffd9860a85f3
> Reviewed-on: https://skia-review.googlesource.com/142246
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Chris Dalton <csmartdalton@google.com>

TBR=brianosman@google.com,csmartdalton@google.com

Change-Id: I1967c2cf6b1f1307270bf62bb04130cdf84317b7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/142280
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/gpu/GrPathRendererChain.cpp b/src/gpu/GrPathRendererChain.cpp
index 60c935ab08..6301045cb7 100644
--- a/src/gpu/GrPathRendererChain.cpp
+++ b/src/gpu/GrPathRendererChain.cpp
@@ -34,6 +34,10 @@ GrPathRendererChain::GrPathRendererChain(GrContext* context, const Options& opti
             fChain.push_back(std::move(pr));
         }
     }
+
+    // AA hairline path renderer is very specialized - no other renderer can do this job well
+    fChain.push_back(sk_make_sp<GrAAHairLinePathRenderer>());
+
     if (options.fGpuPathRenderers & GpuPathRenderers::kCoverageCounting) {
         using AllowCaching = GrCoverageCountingPathRenderer::AllowCaching;
         if (auto ccpr = GrCoverageCountingPathRenderer::CreateIfSupported(
@@ -43,9 +47,6 @@ GrPathRendererChain::GrPathRendererChain(GrContext* context, const Options& opti
             fChain.push_back(std::move(ccpr));
         }
     }
-    if (options.fGpuPathRenderers & GpuPathRenderers::kAAHairline) {
-        fChain.push_back(sk_make_sp<GrAAHairLinePathRenderer>());
-    }
     if (options.fGpuPathRenderers & GpuPathRenderers::kAAConvex) {
         fChain.push_back(sk_make_sp<GrAAConvexPathRenderer>());
     }