External protocol dialog support for the Mac....

chrome/browser/external_protocol_handler.h

 // Copyright (c) 2009 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_EXTERNAL_PROTOCOL_HANDLER_H_
 #define CHROME_BROWSER_EXTERNAL_PROTOCOL_HANDLER_H_
 
 #include <string>
 
 class DictionaryValue;
 class GURL;
 class MessageLoop;
 class PrefService;
 
 class ExternalProtocolHandler {
  public:
   enum BlockState {
     DONT_BLOCK,
     BLOCK,
     UNKNOWN,
   };
 
   // Returns whether we should block a given scheme.
   static BlockState GetBlockState(const std::wstring& scheme);
 
+  // Sets whether we should block a given scheme.
+  static void SetBlockState(const std::wstring& scheme, BlockState state);
+
   // Checks to see if the protocol is allowed, if it is whitelisted,
   // the application associated with the protocol is launched on the io thread,
   // if it is blacklisted, returns silently. Otherwise, an
   // ExternalProtocolDialog is created asking the user. If the user accepts,
   // LaunchUrlWithoutSecurityCheck is called on the io thread and the
   // application is launched.
   // Must run on the UI thread.
   static void LaunchUrl(const GURL& url, int render_process_host_id,
                         int tab_contents_id);
 
@@ skipping 27 matching lines @@
 
   // Prepopulates the dictionary with known protocols to deny or allow, if
   // preferences for them do not already exist.
   static void PrepopulateDictionary(DictionaryValue* win_pref);
 
   // Called when the user interacts with a web page.
   static void OnUserGesture();
 };
 
 #endif  // CHROME_BROWSER_EXTERNAL_PROTOCOL_HANDLER_H_