GrFP can express distance vector field req., program builder declares variable for it

src/gpu/GrPipeline.cpp

Index: src/gpu/GrPipeline.cpp
diff --git a/src/gpu/GrPipeline.cpp b/src/gpu/GrPipeline.cpp
index 7767bf220d4175eede1b43f4b6fca14f747dfb39..c60a94be7eb6fd8d98dd93dff744fe1bbd8ee051 100644
--- a/src/gpu/GrPipeline.cpp
+++ b/src/gpu/GrPipeline.cpp
@@ -48,6 +48,9 @@ GrPipeline* GrPipeline::CreateAt(void* memory, const CreateArgs& args,
     if (builder.getAllowSRGBInputs()) {
         pipeline->fFlags |= kAllowSRGBInputs_Flag;
     }
+    if (builder.getUsesDistanceVectorField()) {
+        pipeline->fFlags |= kUsesDistanceVectorField_Flag;
+    }
     if (args.fHasStencilClip) {
         pipeline->fFlags |= kHasStencilClip_Flag;
     }