Move some content url constants to /url.

chrome/browser/extensions/api/web_request/web_request_api_helpers.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 "chrome/browser/extensions/api/web_request/web_request_api_helpers.h"
 
 #include <cmath>
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 409 matching lines @@
     bool consider_only_cancel_scheme_urls) {
   bool redirected = false;
 
   // Extension that determines the |new_url|.
   std::string winning_extension_id;
   EventResponseDeltas::const_iterator delta;
   for (delta = deltas.begin(); delta != deltas.end(); ++delta) {
     if ((*delta)->new_url.is_empty())
       continue;
     if (consider_only_cancel_scheme_urls &&
-        !(*delta)->new_url.SchemeIs(content::kDataScheme) &&
+        !(*delta)->new_url.SchemeIs(url::kDataScheme) &&
         (*delta)->new_url.spec() != "about:blank") {
       continue;
     }
 
     if (!redirected || *new_url == (*delta)->new_url) {
       *new_url = (*delta)->new_url;
       winning_extension_id = (*delta)->extension_id;
       redirected = true;
       net_log->AddEvent(
           net::NetLog::TYPE_CHROME_EXTENSION_REDIRECTED_REQUEST,
@@ skipping 873 matching lines @@
   return net::HttpUtil::IsToken(name);
 }
 
 bool IsValidHeaderValue(const std::string& value) {
   // Just a sanity check: disallow NUL and CRLF.
   return value.find('\0') == std::string::npos &&
       value.find("\r\n") == std::string::npos;
 }
 
 }  // namespace extension_web_request_api_helpers