Replace some hard coded schemes with the constants in /url/url_constants.h.

url/url_canon_relative.cc

 // Copyright 2013 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.
 
 // Canonicalizer functions for working with and resolving relative URLs.
 
 #include "base/logging.h"
 #include "url/url_canon.h"
 #include "url/url_canon_internal.h"
+#include "url/url_constants.h"
 #include "url/url_file.h"
 #include "url/url_parse_internal.h"
 #include "url/url_util_internal.h"
 
 namespace url {
 
 namespace {
 
 // Firefox does a case-sensitive compare (which is probably wrong--Mozilla bug
 // 379034), whereas IE is case-insensetive.
@@ skipping 118 matching lines @@
   // When the scheme that they both share is not hierarchical, treat the
   // incoming scheme as absolute (this way with the base of "data:foo",
   // "data:bar" will be reported as absolute.
   if (!is_base_hierarchical)
     return true;
 
   int colon_offset = scheme.end();
 
   // If it's a filesystem URL, the only valid way to make it relative is not to
   // supply a scheme.  There's no equivalent to e.g. http:index.html.
-  if (CompareSchemeComponent(url, scheme, "filesystem"))
+  if (CompareSchemeComponent(url, scheme, kFileSystemScheme))
     return true;
 
   // ExtractScheme guarantees that the colon immediately follows what it
   // considers to be the scheme. CountConsecutiveSlashes will handle the
   // case where the begin offset is the end of the input.
   int num_slashes = CountConsecutiveSlashes(url, colon_offset + 1, url_len);
 
   if (num_slashes == 0 || num_slashes == 1) {
     // No slashes means it's a relative path like "http:foo.html". One slash
     // is an absolute path. "http:/home/foo.html"
@@ skipping 391 matching lines @@
                         const Component& relative_component,
                         CharsetConverter* query_converter,
                         CanonOutput* output,
                         Parsed* out_parsed) {
   return DoResolveRelativeURL<base::char16>(
       base_url, base_parsed, base_is_file, relative_url,
       relative_component, query_converter, output, out_parsed);
 }
 
 }  // namespace url