--- /dev/null
+-2.4.0-- qtwebengine/src/3rdparty/chromium/components/paint_preview/common/subset_font.cc.orig 2021-09-08 23:31:22.000000000 +0200
++++ qtwebengine/src/3rdparty/chromium/components/paint_preview/common/subset_font.cc 2021-09-18 23:41:59.009246422 +0200
+@@ -71,9 +71,9 @@
+ hb_set_t* glyphs =
+ hb_subset_input_glyph_set(input.get()); // Owned by |input|.
+ usage.ForEach(base::BindRepeating(&AddGlyphs, base::Unretained(glyphs)));
+- hb_subset_input_set_retain_gids(input.get(), true);
++ hb_subset_input_set_flags(input.get(), HB_SUBSET_FLAGS_RETAIN_GIDS);
+
+- HbScoped<hb_face_t> subset_face(hb_subset(face.get(), input.get()));
++ HbScoped<hb_face_t> subset_face(hb_subset_or_fail(face.get(), input.get()));
+ HbScoped<hb_blob_t> subset_blob(hb_face_reference_blob(subset_face.get()));
+ if (!subset_blob)
+ return nullptr;
+--- qtwebengine/src/3rdparty/chromium/third_party/skia/src/pdf/SkPDFSubsetFont.cpp.orig 2021-09-08 23:31:29.000000000 +0200
++++ qtwebengine/src/3rdparty/chromium/third_party/skia/src/pdf/SkPDFSubsetFont.cpp 2021-09-19 00:00:20.185565236 +0200
+@@ -71,11 +71,10 @@
+ hb_set_t* glyphs = hb_subset_input_glyph_set(input.get());
+ glyphUsage.getSetValues([&glyphs](unsigned gid) { hb_set_add(glyphs, gid);});
+
+- hb_subset_input_set_retain_gids(input.get(), true);
++ hb_subset_input_set_flags(input.get(), HB_SUBSET_FLAGS_RETAIN_GIDS);
+ // TODO: When possible, check if a font is 'tricky' with FT_IS_TRICKY.
+ // If it isn't known if a font is 'tricky', retain the hints.
+- hb_subset_input_set_drop_hints(input.get(), false);
+- HBFace subset(hb_subset(face.get(), input.get()));
++ HBFace subset(hb_subset_or_fail(face.get(), input.get()));
+ HBBlob result(hb_face_reference_blob(subset.get()));
+ return to_data(std::move(result));
+ }