Move about://-related constants from //content to //url

content/browser/browser_url_handler_impl.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 "content/browser/browser_url_handler_impl.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "cc/base/switches.h"
 #include "content/browser/frame_host/debug_urls.h"
@@ skipping 32 matching lines @@
 
     bool is_sub_scheme_allowed = false;
     for (size_t i = 0; i < all_allowed_sub_schemes.size(); ++i) {
       if (url->SchemeIs(all_allowed_sub_schemes[i].c_str())) {
         is_sub_scheme_allowed = true;
         break;
       }
     }
 
     if (!is_sub_scheme_allowed) {
-      *url = GURL(kAboutBlankURL);
+      *url = GURL(url::kAboutBlankURL);
       return false;
     }
 
     return true;
   }
   return false;
 }
 
 // Turns a non view-source URL into the corresponding view-source URL.
 static bool ReverseViewSource(GURL* url, BrowserContext* browser_context) {
@@ skipping 83 matching lines @@
           return true;
       } else if (handler(&test_url, browser_context)) {
         return reverse_rewriter(url, browser_context);
       }
     }
   }
   return false;
 }
 
 }  // namespace content