Add geometric version of spot shadow

BUG=skia:6119

Change-Id: Ib9770bd88f4eebd68f2d893c5788f966d89f193c
Reviewed-on: https://skia-review.googlesource.com/7585
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
diff --git a/gn/gpu.gni b/gn/gpu.gni
index e7e629d..a53daeb 100644
--- a/gn/gpu.gni
+++ b/gn/gpu.gni
@@ -42,6 +42,7 @@
   "$_include/gpu/GrTypesPriv.h",
   "$_include/gpu/GrXferProcessor.h",
 
+  "$_include/gpu/effects/GrBlurredEdgeFragmentProcessor.h",
   "$_include/gpu/effects/GrConstColorProcessor.h",
   "$_include/gpu/effects/GrCoverageSetOpXP.h",
   "$_include/gpu/effects/GrCustomXfermode.h",
@@ -296,6 +297,7 @@
   "$_src/gpu/ops/GrTestMeshDrawOp.h",
 
   "$_src/gpu/effects/Gr1DKernelEffect.h",
+  "$_src/gpu/effects/GrBlurredEdgeFragmentProcessor.cpp",
   "$_src/gpu/effects/GrConfigConversionEffect.cpp",
   "$_src/gpu/effects/GrConfigConversionEffect.h",
   "$_src/gpu/effects/GrConstColorProcessor.cpp",