Allow url::SchemeHostPort to hold non-file scheme without port

mojo/runner/url_resolver.cc

 // Copyright 2014 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 "mojo/runner/url_resolver.h"
 
 #include "base/base_paths.h"
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "mojo/runner/switches.h"
 #include "mojo/shell/query_util.h"
 #include "mojo/util/filename_util.h"
 #include "url/url_util.h"
 
 namespace mojo {
 namespace runner {
 
 URLResolver::URLResolver() {
   // Needed to treat first component of mojo URLs as host, not path.
-  url::AddStandardScheme("mojo");
+  url::AddStandardScheme("mojo", url::SCHEME_WITHOUT_AUTHORITY);
 }
 
 URLResolver::~URLResolver() {
 }
 
 // static
 std::vector<URLResolver::OriginMapping> URLResolver::GetOriginMappings(
     const base::CommandLine::StringVector& args) {
   std::vector<OriginMapping> origin_mappings;
   const std::string kArgsForSwitches[] = {
@@ skipping 77 matching lines @@
 
   // It's still a mojo: URL, use the default mapping scheme.
   std::string query;
   GURL base_url = shell::GetBaseURLAndQuery(mojo_url, &query);
   const std::string host = base_url.host();
   return mojo_base_url_.Resolve(host + "/" + host + ".mojo" + query);
 }
 
 }  // namespace runner
 }  // namespace mojo