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

src/gpu/GrPipeline.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrPipeline.h"
 
 #include "GrCaps.h"
@@ skipping 30 matching lines @@
     }
     if (builder.snapVerticesToPixelCenters()) {
         pipeline->fFlags |= kSnapVertices_Flag;
     }
     if (builder.getDisableOutputConversionToSRGB()) {
         pipeline->fFlags |= kDisableOutputConversionToSRGB_Flag;
     }
     if (builder.getAllowSRGBInputs()) {
         pipeline->fFlags |= kAllowSRGBInputs_Flag;
     }
+    if (builder.getUsesDistanceVectorField()) {
+        pipeline->fFlags |= kUsesDistanceVectorField_Flag;
+    }
     if (args.fHasStencilClip) {
         pipeline->fFlags |= kHasStencilClip_Flag;
     }
 
     // Create XferProcessor from DS's XPFactory
     bool hasMixedSamples = args.fDrawContext->hasMixedSamples() &&
                            (builder.isHWAntialias() || !pipeline->fStencilSettings.isDisabled());
     const GrXPFactory* xpFactory = builder.getXPFactory();
     SkAutoTUnref<GrXferProcessor> xferProcessor;
     if (xpFactory) {
@@ skipping 179 matching lines @@
         }
     }
 
     for (int i = 0; i < a.numFragmentProcessors(); i++) {
         if (!a.getFragmentProcessor(i).isEqual(b.getFragmentProcessor(i), ignoreCoordTransforms)) {
             return false;
         }
     }
     return true;
 }