Use net::HttpResponseHeaders::IsRedirectResponseCode() from Blink

third_party/WebKit/Source/platform/network/NetworkUtils.cpp

 // Copyright 2016 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 "platform/network/NetworkUtils.h"
 
 #include "components/mime_util/mime_util.h"
 #include "net/base/data_url.h"
 #include "net/base/ip_address.h"
 #include "net/base/net_errors.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "net/base/url_util.h"
+#include "net/http/http_response_headers.h"
 #include "platform/SharedBuffer.h"
 #include "platform/weborigin/KURL.h"
 #include "public/platform/URLConversion.h"
 #include "public/platform/WebString.h"
 #include "url/gurl.h"
 #include "wtf/text/StringUTF8Adaptor.h"
 #include "wtf/text/WTFString.h"
 
 namespace {
 
@@ skipping 47 matching lines @@
   if (net::DataURL::Parse(WebStringToGURL(url.getString()), &utf8MimeType,
                           &utf8Charset, &data) &&
       mime_util::IsSupportedMimeType(utf8MimeType)) {
     mimetype = WebString::fromUTF8(utf8MimeType);
     charset = WebString::fromUTF8(utf8Charset);
     return SharedBuffer::create(data.data(), data.size());
   }
   return nullptr;
 }
 
+bool isRedirectResponseCode(int responseCode) {
+  return net::HttpResponseHeaders::IsRedirectResponseCode(responseCode);
+}
+
 }  // NetworkUtils
 
 }  // namespace blink