Reduce unnecessary usage of TextCaseSensitivity::TextCaseInsensitive.

third_party/WebKit/Source/core/html/parser/XSSAuditor.cpp

Index: third_party/WebKit/Source/core/html/parser/XSSAuditor.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/XSSAuditor.cpp b/third_party/WebKit/Source/core/html/parser/XSSAuditor.cpp
index 9fc4021c83cb0cc755e84c7a384d8fbc45db78c3..4d74d13ad8392849057826d1266e20241195e87a 100644
--- a/third_party/WebKit/Source/core/html/parser/XSSAuditor.cpp
+++ b/third_party/WebKit/Source/core/html/parser/XSSAuditor.cpp
@@ -869,13 +869,14 @@ String XSSAuditor::canonicalizedSnippetForJavaScript(
 bool XSSAuditor::isContainedInRequest(const String& decodedSnippet) {
   if (decodedSnippet.isEmpty())
     return false;
-  if (m_decodedURL.find(decodedSnippet, 0, TextCaseInsensitive) != kNotFound)
+  if (m_decodedURL.find(decodedSnippet, 0, TextCaseUnicodeInsensitive) !=
+      kNotFound)
     return true;
   if (m_decodedHTTPBodySuffixTree &&
       !m_decodedHTTPBodySuffixTree->mightContain(decodedSnippet))
     return false;
-  return m_decodedHTTPBody.find(decodedSnippet, 0, TextCaseInsensitive) !=
-         kNotFound;
+  return m_decodedHTTPBody.find(decodedSnippet, 0,
+                                TextCaseUnicodeInsensitive) != kNotFound;
 }
 
 bool XSSAuditor::isLikelySafeResource(const String& url) {