Made shadows blurry (thru implementing variance mapping)

src/core/SkLiteDL.cpp

Index: src/core/SkLiteDL.cpp
diff --git a/src/core/SkLiteDL.cpp b/src/core/SkLiteDL.cpp
index 8dad6f40e482c04ef4200a6f35a6c7d5bb6e714b..72fd53e47655ffb3b045293fdf6ea7f14cf1a375 100644
--- a/src/core/SkLiteDL.cpp
+++ b/src/core/SkLiteDL.cpp
@@ -222,17 +222,20 @@ namespace {
         void makeThreadsafe() override { make_threadsafe(nullptr, &matrix); }
     };
     struct DrawShadowedPicture final : Op {
-        DrawShadowedPicture(const SkPicture* picture, const SkMatrix* matrix, const SkPaint* paint)
+        DrawShadowedPicture(const SkPicture* picture, const SkMatrix* matrix,
+                            const SkPaint* paint, const SkShadowParams& sParams)
             : picture(sk_ref_sp(picture)) {
             if (matrix) { this->matrix = *matrix; }
             if (paint)  { this->paint  = *paint;  }
+            this->sParams = sParams;
         }
         sk_sp<const SkPicture> picture;
         SkMatrix               matrix = SkMatrix::I();
         SkPaint                paint;
+        SkShadowParams         sParams;
         void draw(SkCanvas* c) override {
         #ifdef SK_EXPERIMENTAL_SHADOWING
-            c->drawShadowedPicture(picture.get(), &matrix, &paint);
+            c->drawShadowedPicture(picture.get(), &matrix, &paint, sParams);
         #endif
         }
         void optimizeFor(GrContext* ctx) override { optimize_for(ctx, &paint); }
@@ -541,9 +544,9 @@ void SkLiteDL::drawPicture(const SkPicture* picture,
                            const SkMatrix* matrix, const SkPaint* paint) {
     push<DrawPicture>(&fBytes, 0, picture, matrix, paint);
 }
-void SkLiteDL::drawShadowedPicture(const SkPicture* picture,
-                                   const SkMatrix* matrix, const SkPaint* paint) {
-    push<DrawShadowedPicture>(&fBytes, 0, picture, matrix, paint);
+void SkLiteDL::drawShadowedPicture(const SkPicture* picture, const SkMatrix* matrix,
+                                   const SkPaint* paint, const SkShadowParams& sParams) {
+    push<DrawShadowedPicture>(&fBytes, 0, picture, matrix, paint, sParams);
 }
 
 void SkLiteDL::drawBitmap(const SkBitmap& bm, SkScalar x, SkScalar y, const SkPaint* paint) {