Replace base::str[n]casecmp with helper functions.

net/http/http_log_util.cc

 // 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 "net/http/http_log_util.h"
 
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "net/http/http_auth_challenge_tokenizer.h"
 #include "net/http/http_util.h"
@@ skipping 27 matching lines @@
                                       const std::string& header,
                                       const std::string& value) {
   std::string::const_iterator redact_begin = value.begin();
   std::string::const_iterator redact_end = value.begin();
 
   if (redact_begin == redact_end &&
       !capture_mode.include_cookies_and_credentials()) {
     // Note: this logic should be kept in sync with stripCookiesAndLoginInfo in
     // chrome/browser/resources/net_internals/log_view_painter.js.
 
-    if (!base::strcasecmp(header.c_str(), "set-cookie") ||
-        !base::strcasecmp(header.c_str(), "set-cookie2") ||
-        !base::strcasecmp(header.c_str(), "cookie") ||
-        !base::strcasecmp(header.c_str(), "authorization") ||
-        !base::strcasecmp(header.c_str(), "proxy-authorization")) {
+    if (base::EqualsCaseInsensitiveASCII(header, "set-cookie") ||
+        base::EqualsCaseInsensitiveASCII(header, "set-cookie2") ||
+        base::EqualsCaseInsensitiveASCII(header, "cookie") ||
+        base::EqualsCaseInsensitiveASCII(header, "authorization") ||
+        base::EqualsCaseInsensitiveASCII(header, "proxy-authorization")) {
       redact_begin = value.begin();
       redact_end = value.end();
-    } else if (!base::strcasecmp(header.c_str(), "www-authenticate") ||
-               !base::strcasecmp(header.c_str(), "proxy-authenticate")) {
+    } else if (base::EqualsCaseInsensitiveASCII(header, "www-authenticate") ||
+               base::EqualsCaseInsensitiveASCII(header, "proxy-authenticate")) {
       // Look for authentication information from data received from the server
       // in multi-round Negotiate authentication.
       HttpAuthChallengeTokenizer challenge(value.begin(), value.end());
       if (ShouldRedactChallenge(&challenge)) {
         redact_begin = challenge.params_begin();
         redact_end = challenge.params_end();
       }
     }
   }
 
   if (redact_begin == redact_end)
     return value;
 
   return std::string(value.begin(), redact_begin) +
       base::StringPrintf("[%ld bytes were stripped]",
                          static_cast<long>(redact_end - redact_begin)) +
       std::string(redact_end, value.end());
 }
 
 }  // namespace net