Functionality to allow blacklist and whitelist of custom schemes

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h

 // 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.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 #define CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 54 matching lines @@
   content::ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
       net::AuthChallengeInfo* auth_info,
       net::URLRequest* request) override;
   bool HandleExternalProtocol(
       const GURL& url,
       int child_id,
       const content::ResourceRequestInfo::WebContentsGetter&
           web_contents_getter,
       bool is_main_frame,
       ui::PageTransition page_transition,
-      bool has_user_gesture) override;
+      bool has_user_gesture,
+      content::ResourceContext* resource_context) override;
   bool ShouldForceDownloadResource(const GURL& url,
                                    const std::string& mime_type) override;
   bool ShouldInterceptResourceAsStream(net::URLRequest* request,
                                        const base::FilePath& plugin_path,
                                        const std::string& mime_type,
                                        GURL* origin,
                                        std::string* payload) override;
   void OnStreamCreated(net::URLRequest* request,
                        std::unique_ptr<content::StreamInfo> stream) override;
   void OnResponseStarted(net::URLRequest* request,
@@ skipping 34 matching lines @@
   scoped_refptr<safe_browsing::SafeBrowsingService> safe_browsing_;
 #if defined(ENABLE_EXTENSIONS)
   scoped_refptr<extensions::UserScriptListener> user_script_listener_;
   std::map<net::URLRequest*, StreamTargetInfo> stream_target_info_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ChromeResourceDispatcherHostDelegate);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_