REGRESSION(279097@main): [Win GTK WPE] ASSERTION FAILED: isASCII(char…

…acters[i]) in WTF::StringLiterals::operator""_span under WebCore::ICOImageDecoder::imageTypeAtIndex

https://bugs.webkit.org/show_bug.cgi?id=274549

Reviewed by Fujii Hironori.

Don't use ""_span since it requires all characters to be ASCII.

* Source/WebCore/platform/image-decoders/ico/ICOImageDecoder.cpp:
(WebCore::ICOImageDecoder::imageTypeAtIndex):

Canonical link: https://commits.webkit.org/279167@main

Source/WebCore/platform/image-decoders/ico/ICOImageDecoder.cpp

@@ -317,7 +317,7 @@ ICOImageDecoder::ImageType ICOImageDecoder::imageTypeAtIndex(size_t index)
     const uint32_t imageOffset = m_dirEntries[index].m_imageOffset;
     if ((imageOffset > m_data->size()) || ((m_data->size() - imageOffset) < 4))
         return Unknown;
-    return equalSpans(m_data->span().subspan(imageOffset, 4), "\x89PNG"_span) ? PNG : BMP;
+    return equalSpans(m_data->span().subspan(imageOffset, 4), std::span { "\x89PNG", 4 }) ? PNG : BMP;
 }
 
 }