Allow gradient optimization with perspective

src/gpu/gl/GrGLProgramEffects.cpp

Index: src/gpu/gl/GrGLProgramEffects.cpp
diff --git a/src/gpu/gl/GrGLProgramEffects.cpp b/src/gpu/gl/GrGLProgramEffects.cpp
index 312322c683a8782b2ec9d835f091b0c4a5a91421..b6decf8607d188cf7d3479d964b22c8a9f150b1f 100644
--- a/src/gpu/gl/GrGLProgramEffects.cpp
+++ b/src/gpu/gl/GrGLProgramEffects.cpp
@@ -391,8 +391,7 @@ void GrGLProgramEffectsBuilder::emitTransforms(const GrEffectRef& effect,
             default:
                 GrCrash("Unexpected uniform type.");
         }
-        SkNEW_APPEND_TO_TARRAY(outCoords, TransformedCoords,
-                               (fsVaryingName, varyingType, vsVaryingName));
+        SkNEW_APPEND_TO_TARRAY(outCoords, TransformedCoords, (fsVaryingName, varyingType));
     }
 }