| Index: components/html_viewer/web_mime_registry_impl.cc
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| diff --git a/components/html_viewer/web_mime_registry_impl.cc b/components/html_viewer/web_mime_registry_impl.cc
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| index a050693a098397926ba99b7309f68a8f34851546..caed08920b74a5456852d0d32b5905d5c014577f 100644
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| --- a/components/html_viewer/web_mime_registry_impl.cc
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| +++ b/components/html_viewer/web_mime_registry_impl.cc
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| @@ -44,7 +44,8 @@ WebMimeRegistryImpl::supportsImagePrefixedMIMEType(
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|      const blink::WebString& mime_type) {
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|    std::string ascii_mime_type = ToASCIIOrEmpty(mime_type);
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|    return (mime_util::IsSupportedImageMimeType(ascii_mime_type) ||
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| -          (base::StartsWithASCII(ascii_mime_type, "image/", true) &&
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| +          (base::StartsWith(ascii_mime_type, "image/",
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| +                            base::CompareCase::SENSITIVE) &&
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|             mime_util::IsSupportedNonImageMimeType(ascii_mime_type)))
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|               ? WebMimeRegistry::IsSupported
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|               : WebMimeRegistry::IsNotSupported;
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| 
 |