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

src/gpu/GrPipelineBuilder.cpp

Index: src/gpu/GrPipelineBuilder.cpp
diff --git a/src/gpu/GrPipelineBuilder.cpp b/src/gpu/GrPipelineBuilder.cpp
index 60cbc62cf2048b51ec6cac59a48122d9a8443864..864d6f1bc6135fa77689441658da1c09b1ec0b45 100644
--- a/src/gpu/GrPipelineBuilder.cpp
+++ b/src/gpu/GrPipelineBuilder.cpp
@@ -41,6 +41,8 @@ GrPipelineBuilder::GrPipelineBuilder(const GrPaint& paint, bool useHWAA)
                    paint.getDisableOutputConversionToSRGB());
     this->setState(GrPipelineBuilder::kAllowSRGBInputs_Flag,
                    paint.getAllowSRGBInputs());
+    this->setState(GrPipelineBuilder::kUsesDistanceVectorField_Flag,
+                   paint.usesDistanceVectorField());
 }
 
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