Functionality to allow blacklist and whitelist of custom schemes

content/public/browser/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 CONTENT_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 55 matching lines @@
                                 ScopedVector<ResourceThrottle>* throttles);
 
   // Creates a ResourceDispatcherHostLoginDelegate that asks the user for a
   // username and password.
   virtual ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
       net::AuthChallengeInfo* auth_info,
       net::URLRequest* request);
 
   // Launches the url for the given tab. Returns true if an attempt to handle
   // the url was made, e.g. by launching an app. Note that this does not
-  // guarantee that the app successfully handled it.
+  // guarantee that the app successfully handled it. Parameter |is_whitelisted|
+  // specifies whether |url| matches a whitelist pattern defined by user. In
+  // that case it will process the |url| without asking user permission.
   virtual bool HandleExternalProtocol(
       const GURL& url,
       int child_id,
       const ResourceRequestInfo::WebContentsGetter& web_contents_getter,
       bool is_main_frame,
       ui::PageTransition page_transition,
-      bool has_user_gesture);
+      bool has_user_gesture,
+      bool is_whitelisted);
 
   // Returns true if we should force the given resource to be downloaded.
   // Otherwise, the content layer decides.
   virtual bool ShouldForceDownloadResource(const GURL& url,
                                            const std::string& mime_type);
 
   // Returns true and sets |origin| if a Stream should be created for the
   // resource. |plugin_path| is the plugin which will be used to handle the
   // request (if the stream will be rendered in a BrowserPlugin). It may be
   // empty. If true is returned, a new Stream will be created and
@@ skipping 37 matching lines @@
                                     content::ResourceContext* resource_context);
 
  protected:
   ResourceDispatcherHostDelegate();
   virtual ~ResourceDispatcherHostDelegate();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_