Update font_service to understand 'oblique'.

components/font_service/font_service_app.cc

Index: components/font_service/font_service_app.cc
diff --git a/components/font_service/font_service_app.cc b/components/font_service/font_service_app.cc
index ae87c8d8bc6391b6c885ec6913e9e3e9d1e5bb4a..4ec5f06f3f654b621052273e68881b4b0f4b4033 100644
--- a/components/font_service/font_service_app.cc
+++ b/components/font_service/font_service_app.cc
@@ -17,6 +17,9 @@ static_assert(static_cast<uint32_t>(SkFontStyle::kUpright_Slant) ==
 static_assert(static_cast<uint32_t>(SkFontStyle::kItalic_Slant) ==
                   static_cast<uint32_t>(font_service::TypefaceSlant::ITALIC),
               "Skia and font service flags must match");
+static_assert(static_cast<uint32_t>(SkFontStyle::kOblique_Slant) ==
+                  static_cast<uint32_t>(font_service::TypefaceSlant::OBLIQUE),
+              "Skia and font service flags must match");
 
 namespace {