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

content/browser/loader/resource_scheduler.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 <set>
 
 #include "content/browser/loader/resource_scheduler.h"
 
 #include "base/stl_util.h"
 #include "content/common/resource_messages.h"
@@ skipping 595 matching lines @@
     // TODO(aiolos): We probably want to Coalesce these as well to avoid
     // waking the disk.
     if (!url_request.url().SchemeIsHTTPOrHTTPS()) {
       return START_REQUEST;
     }
 
     if (throttle_state_ == COALESCED) {
       return DO_NOT_START_REQUEST_AND_STOP_SEARCHING;
     }
 
-    if (using_spdy_proxy_ && url_request.url().SchemeIs("http")) {
+    if (using_spdy_proxy_ && url_request.url().SchemeIs(url::kHttpScheme)) {
       return START_REQUEST;
     }
 
     net::HostPortPair host_port_pair =
         net::HostPortPair::FromURL(url_request.url());
     net::HttpServerProperties& http_server_properties =
         *url_request.context()->http_server_properties();
 
     // TODO(willchan): We should really improve this algorithm as described in
     // crbug.com/164101. Also, theoretically we should not count a SPDY request
@@ skipping 394 matching lines @@
   client->ReprioritizeRequest(
       request, old_priority_params, new_priority_params);
 }
 
 ResourceScheduler::ClientId ResourceScheduler::MakeClientId(
     int child_id, int route_id) {
   return (static_cast<ResourceScheduler::ClientId>(child_id) << 32) | route_id;
 }
 
 }  // namespace content