Revert of Move net::FormatUrl and friends outside of //net and into //components

net/base/net_util.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 "net/base/net_util.h"
 
 #include <errno.h>
 
 #include <algorithm>
 #include <limits>
@@ skipping 414 matching lines @@
   UnescapeRule::Type flags =
       UnescapeRule::SPACES | UnescapeRule::URL_SPECIAL_CHARS;
   *username = UnescapeAndDecodeUTF8URLComponent(url.username(), flags);
   *password = UnescapeAndDecodeUTF8URLComponent(url.password(), flags);
 }
 
 std::string GetHostOrSpecFromURL(const GURL& url) {
   return url.has_host() ? TrimEndingDot(url.host()) : url.spec();
 }
 
+bool CanStripTrailingSlash(const GURL& url) {
+  // Omit the path only for standard, non-file URLs with nothing but "/" after
+  // the hostname.
+  return url.IsStandard() && !url.SchemeIsFile() &&
+      !url.SchemeIsFileSystem() && !url.has_query() && !url.has_ref()
+      && url.path() == "/";
+}
+
 GURL SimplifyUrlForRequest(const GURL& url) {
   DCHECK(url.is_valid());
   GURL::Replacements replacements;
   replacements.ClearUsername();
   replacements.ClearPassword();
   replacements.ClearRef();
   return url.ReplaceComponents(replacements);
 }
 
 bool HaveOnlyLoopbackAddresses() {
@@ skipping 178 matching lines @@
   };
   const std::string& host = url.host();
   for (const char* suffix : kGoogleHostSuffixes) {
     if (base::EndsWith(host, suffix, base::CompareCase::INSENSITIVE_ASCII))
       return true;
   }
   return false;
 }
 
 }  // namespace net