Replace "http" etc with the url_constants version. This was a previous TODO for webplugin_proxy....

content/renderer/render_view.cc

 // Copyright (c) 2011 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/renderer/render_view.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 4087 matching lines @@
   // Must be a top level frame.
   if (frame->parent() != NULL)
     return false;
 
   // Navigations initiated within Webkit are not sent out to the external host
   // in the following cases.
   // 1. The url scheme is not http/https
   // 2. The origin of the url and the opener is the same in which case the
   //    opener relationship is maintained.
   // 3. Reloads/form submits/back forward navigations
-  if (!url.SchemeIs("http") && !url.SchemeIs("https"))
+  if (!url.SchemeIs(chrome::kHttpScheme) && !url.SchemeIs(chrome::kHttpsScheme))
     return false;
 
   // Not interested in reloads/form submits/resubmits/back forward navigations.
   if (type != WebKit::WebNavigationTypeReload &&
       type != WebKit::WebNavigationTypeFormSubmitted &&
       type != WebKit::WebNavigationTypeFormResubmitted &&
       type != WebKit::WebNavigationTypeBackForward) {
     // The opener relationship between the new window and the parent allows the
     // new window to script the parent and vice versa. This is not allowed if
     // the origins of the two domains are different. This can be treated as a
@@ skipping 60 matching lines @@
     const webkit_glue::CustomContextMenuContext& custom_context) {
   if (custom_context.is_pepper_menu)
     pepper_delegate_.OnContextMenuClosed(custom_context);
   else
     context_menu_node_.reset();
 }
 
 void RenderView::OnNetworkStateChanged(bool online) {
   WebNetworkStateNotifier::setOnLine(online);
 }