LibTextCodec: Don't allocate Strings on encoding normalisation

This ripples down to LibWeb's HTML and XHR decoders, which therefore
become less allocation heavy.

2 files changed, 2 insertions, 2 deletions

diff --git a/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.cpp b/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.cpp
index f0c5c524b1..2a9b622df5 100644
--- a/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.cpp
@@ -34,7 +34,7 @@ bool prescan_skip_whitespace_and_slashes(const ByteBuffer& input, size_t& positi
 }
 
 // https://html.spec.whatwg.org/multipage/urls-and-fetching.html#algorithm-for-extracting-a-character-encoding-from-a-meta-element
-Optional<String> extract_character_encoding_from_meta_element(String const& string)
+Optional<StringView> extract_character_encoding_from_meta_element(String const& string)
 {
     // Checking for "charset" is case insensitive, as is getting an encoding.
     // Therefore, stick to lowercase from the start for simplicity.
diff --git a/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.h b/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.h
index 52784e8d7c..e388b68d99 100644
--- a/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.h
+++ b/Userland/Libraries/LibWeb/HTML/Parser/HTMLEncodingDetection.h
@@ -15,7 +15,7 @@ namespace Web::HTML {
 bool prescan_should_abort(const ByteBuffer& input, const size_t& position);
 bool prescan_is_whitespace_or_slash(const u8& byte);
 bool prescan_skip_whitespace_and_slashes(const ByteBuffer& input, size_t& position);
-Optional<String> extract_character_encoding_from_meta_element(String const&);
+Optional<StringView> extract_character_encoding_from_meta_element(String const&);
 RefPtr<DOM::Attribute> prescan_get_attribute(DOM::Document&, const ByteBuffer& input, size_t& position);
 Optional<String> run_prescan_byte_stream_algorithm(DOM::Document&, const ByteBuffer& input);
 String run_encoding_sniffing_algorithm(DOM::Document&, const ByteBuffer& input);