LibWeb/MimeSniff: Add sniffing in a font context

Author: https://github.com/kemzeb
Commit: 0b7148e2a6
Pull-request: https://github.com/SerenityOS/serenity/pull/22208
Reviewed-by: https://github.com/ADKaster ✅

Userland/Libraries/LibWeb/MimeSniff/Resource.h

@@ -14,7 +14,8 @@ enum class SniffingContext {
     None,
     Browsing,
     Image,
-    AudioOrVideo
+    AudioOrVideo,
+    Font,
 };
 
 struct SniffingConfiguration {
@@ -44,6 +45,7 @@ private:
     ErrorOr<void> context_specific_sniffing_algorithm(SniffingContext sniffing_context);
     ErrorOr<void> rules_for_sniffing_images_specifically();
     ErrorOr<void> rules_for_sniffing_audio_or_video_specifically();
+    ErrorOr<void> rules_for_sniffing_fonts_specifically();
 
     // https://mimesniff.spec.whatwg.org/#supplied-mime-type
     // A supplied MIME type, the MIME type determined by the supplied MIME type detection algorithm.