Revert of Replace string::find(prefix) == 0 pattern with base::StartsWith().

net/cookies/canonical_cookie.cc

 // Copyright (c) 2012 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.
 
 // Portions of this code based on Mozilla:
 //   (netwerk/cookie/src/nsCookieService.cpp)
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
@@ skipping 462 matching lines @@
     return IsHttpOnly();
 
   return Priority() < other.Priority();
 }
 
 // static
 CanonicalCookie::CookiePrefix CanonicalCookie::GetCookiePrefix(
     const std::string& name) {
   const char kSecurePrefix[] = "__Secure-";
   const char kHostPrefix[] = "__Host-";
-  if (base::StartsWith(name, kSecurePrefix, base::CompareCase::SENSITIVE))
+  if (name.find(kSecurePrefix) == 0)
     return CanonicalCookie::COOKIE_PREFIX_SECURE;
-  if (base::StartsWith(name, kHostPrefix, base::CompareCase::SENSITIVE))
+  if (name.find(kHostPrefix) == 0)
     return CanonicalCookie::COOKIE_PREFIX_HOST;
   return CanonicalCookie::COOKIE_PREFIX_NONE;
 }
 
 // static
 void CanonicalCookie::RecordCookiePrefixMetrics(
     CanonicalCookie::CookiePrefix prefix,
     bool is_cookie_valid) {
   const char kCookiePrefixHistogram[] = "Cookie.CookiePrefix";
   const char kCookiePrefixBlockedHistogram[] = "Cookie.CookiePrefixBlocked";
@@ skipping 16 matching lines @@
   if (prefix == CanonicalCookie::COOKIE_PREFIX_SECURE)
     return parsed_cookie.IsSecure() && url.SchemeIsCryptographic();
   if (prefix == CanonicalCookie::COOKIE_PREFIX_HOST) {
     return parsed_cookie.IsSecure() && url.SchemeIsCryptographic() &&
            !parsed_cookie.HasDomain() && parsed_cookie.Path() == "/";
   }
   return true;
 }
 
 }  // namespace net