[SkParagraph] Copy font features to the Skia layout engine text style (#15562)

third_party/txt/src/skia/paragraph_builder_skia.cc

@@ -114,6 +114,11 @@ skt::TextStyle TxtToSkia(const TextStyle& txt) {
     skia.setForegroundColor(txt.foreground);
   }
 
+  skia.resetFontFeatures();
+  for (const auto& ff : txt.font_features.GetFontFeatures()) {
+    skia.addFontFeature(SkString(ff.first.c_str()), ff.second);
+  }
+
   skia.resetShadows();
   for (const txt::TextShadow& txt_shadow : txt.text_shadows) {
     skt::TextShadow shadow;

third_party/txt/src/txt/font_features.cc

@@ -40,4 +40,8 @@ std::string FontFeatures::GetFeatureSettings() const {
   return stream.str();
 }
 
+const std::map<std::string, int>& FontFeatures::GetFontFeatures() const {
+  return feature_map_;
+}
+
 }  // namespace txt

third_party/txt/src/txt/font_features.h

@@ -31,6 +31,8 @@ class FontFeatures {
 
   std::string GetFeatureSettings() const;
 
+  const std::map<std::string, int>& GetFontFeatures() const;
+
  private:
   std::map<std::string, int> feature_map_;
 };