Reland "[svg] Plumb a ResourceProvider"

This is a reland of dd29e20904687621ac77b182080ec68c4323b70c

Original change's description:
> [svg] Plumb a ResourceProvider
>
> ... for image loading.
>
> Update the SVG tools to pass local/FS resource providers.
>
> Change-Id: I2c0e446047da87f177fde0f23b7ea1f0a856e808
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/359996
> Commit-Queue: Florin Malita <fmalita@google.com>
> Reviewed-by: Tyler Denniston <tdenniston@google.com>

Change-Id: I28de60b299fc89f46b090812fc632105143fb6da
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/360607
Commit-Queue: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@google.com>
Reviewed-by: Florin Malita <fmalita@google.com>
diff --git a/modules/svg/tests/Text.cpp b/modules/svg/tests/Text.cpp
index 107395b..7308ac8 100644
--- a/modules/svg/tests/Text.cpp
+++ b/modules/svg/tests/Text.cpp
@@ -162,7 +162,8 @@
         const SkSVGPresentationContext pctx;
         SkNoDrawCanvas canvas(0, 0);
         sk_sp<SkFontMgr> fmgr;
-        const SkSVGRenderContext ctx(&canvas, fmgr, mapper, lctx, pctx, nullptr);
+        sk_sp<skresources::ResourceProvider> rp;
+        const SkSVGRenderContext ctx(&canvas, fmgr, rp, mapper, lctx, pctx, nullptr);
 
         SkSVGTextContext tctx(ctx, mock_cb);
         SkSVGTextContext::ScopedPosResolver pa(*a, lctx, &tctx, tst.offseta);