Make the new WebUI's code handle all webui schemes, instead of just chrome://.

content/browser/webui/url_data_manager_backend.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 "content/browser/webui/url_data_manager_backend.h"
 
 #include <set>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 682 matching lines @@
                                              std::string* path) {
   const std::string& spec = url.possibly_invalid_spec();
   const url::Parsed& parsed = url.parsed_for_possibly_invalid_spec();
   // + 1 to skip the slash at the beginning of the path.
   int offset = parsed.CountCharactersBefore(url::Parsed::PATH, false) + 1;
 
   if (offset < static_cast<int>(spec.size()))
     path->assign(spec.substr(offset));
 }
 
+std::vector<std::string> URLDataManagerBackend::GetWebUISchemes() {
+  std::vector<std::string> schemes;
+  schemes.push_back(kChromeUIScheme);
+  GetContentClient()->browser()->GetAdditionalWebUISchemes(&schemes);
+  return schemes;
+}
+
 namespace {
 
 class DevToolsJobFactory
     : public net::URLRequestJobFactory::ProtocolHandler {
  public:
   explicit DevToolsJobFactory(ResourceContext* resource_context);
   ~DevToolsJobFactory() override;
 
   net::URLRequestJob* MaybeCreateJob(
       net::URLRequest* request,
@@ skipping 23 matching lines @@
 }
 
 }  // namespace
 
 net::URLRequestJobFactory::ProtocolHandler* CreateDevToolsProtocolHandler(
     ResourceContext* resource_context) {
   return new DevToolsJobFactory(resource_context);
 }
 
 }  // namespace content