Remove legacy StartsWithASCII function.

components/content_settings/core/common/content_settings_pattern_parser.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.
 
 #include "components/content_settings/core/common/content_settings_pattern_parser.h"
 
 #include "base/strings/string_util.h"
 #include "url/url_constants.h"
 
 namespace {
@@ skipping 112 matching lines @@
     }
   } else {
     builder->WithSchemeWildcard();
   }
 
   if (host_component.IsNonEmpty()) {
     std::string host = pattern_spec.substr(host_component.start,
                                            host_component.len);
     if (host == kHostWildcard) {
       builder->WithDomainWildcard();
-    } else if (base::StartsWithASCII(host, kDomainWildcard, true)) {
+    } else if (base::StartsWith(host, kDomainWildcard,
+                                base::CompareCase::SENSITIVE)) {
       host = host.substr(kDomainWildcardLength);
       builder->WithDomainWildcard();
       builder->WithHost(host);
     } else {
       // If the host contains a wildcard symbol then it is invalid.
       if (host.find(kHostWildcard) != std::string::npos) {
         builder->Invalid();
         return;
       }
       builder->WithHost(host);
@@ skipping 68 matching lines @@
   }
 
   if (!parts.is_port_wildcard) {
     str += std::string(kUrlPortSeparator) + parts.port;
   }
 
   return str;
 }
 
 }  // namespace content_settings