Reduce unnecessary usage of TextCaseSensitivity::TextCaseInsensitive.

third_party/WebKit/Source/core/fetch/FetchUtils.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/fetch/FetchUtils.h"
 
 #include "platform/HTTPNames.h"
 #include "platform/network/HTTPHeaderMap.h"
 #include "platform/network/HTTPParsers.h"
 #include "wtf/HashSet.h"
 #include "wtf/Threading.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 namespace {
 
 bool isHTTPWhitespace(UChar chr) {
   return chr == ' ' || chr == '\n' || chr == '\t' || chr == '\r';
 }
 
 class ForbiddenHeaderNames {
   WTF_MAKE_NONCOPYABLE(ForbiddenHeaderNames);
   USING_FAST_MALLOC(ForbiddenHeaderNames);
 
  public:
   bool has(const String& name) const {
     return m_fixedNames.contains(name) ||
-           name.startsWith(m_proxyHeaderPrefix, TextCaseInsensitive) ||
-           name.startsWith(m_secHeaderPrefix, TextCaseInsensitive);
+           name.startsWith(m_proxyHeaderPrefix, TextCaseASCIIInsensitive) ||
+           name.startsWith(m_secHeaderPrefix, TextCaseASCIIInsensitive);
   }
 
   static const ForbiddenHeaderNames& get();
 
  private:
   ForbiddenHeaderNames();
 
   String m_proxyHeaderPrefix;
   String m_secHeaderPrefix;
   HashSet<String, CaseFoldingHash> m_fixedNames;
@@ skipping 156 matching lines @@
 
 String FetchUtils::normalizeHeaderValue(const String& value) {
   // https://fetch.spec.whatwg.org/#concept-header-value-normalize
   // Strip leading and trailing whitespace from header value.
   // HTTP whitespace bytes are 0x09, 0x0A, 0x0D, and 0x20.
 
   return value.stripWhiteSpace(isHTTPWhitespace);
 }
 
 }  // namespace blink