Make --allow-cross-domain-auth-prompt equivalent to a preference.

content/browser/renderer_host/resource_dispatcher_host.h

 // 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.
 
 // This is the browser side of the resource dispatcher, it receives requests
 // from the child process (i.e. [Renderer, Plugin, Worker]ProcessHost), and
 // dispatches them to URLRequests. It then forwards the messages from the
 // URLRequests back to the correct process for handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
@@ skipping 244 matching lines @@
   void UnregisterDownloadedTempFile(int child_id, int request_id);
 
   // Needed for the sync IPC message dispatcher macros.
   bool Send(IPC::Message* message);
 
   // Controls if we launch or squash prefetch requests as they arrive
   // from renderers.
   static bool is_prefetch_enabled();
   static void set_is_prefetch_enabled(bool value);
 
+  // Controle whether third-party sub-content can pop-up HTTP basic auth

[jam, 2011/05/25 23:25:22]

nit: spelling

+  // dialog boxes.
+  static bool allow_cross_origin_auth_prompt();

[jam, 2011/05/25 23:25:22]

does this really have to be static?  you can just call  inside the
CreateResourceDispatcherHost function

+  static void set_allow_cross_origin_auth_prompt(bool value);
+
   // This does not take ownership of the observer. It is expected that the
   // observer have a longer lifetime than the ResourceDispatcherHost.
   void set_observer(Observer* observer) { observer_ = observer; }
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ResourceDispatcherHostTest,
                            TestBlockedRequestsProcessDies);
   FRIEND_TEST_ALL_PREFIXES(ResourceDispatcherHostTest,
                            IncrementOutstandingRequestsMemoryCost);
   FRIEND_TEST_ALL_PREFIXES(ResourceDispatcherHostTest,
@@ skipping 219 matching lines @@
   //       kAvgBytesPerOutstandingRequest)
   int max_outstanding_requests_cost_per_process_;
 
   // Used during IPC message dispatching so that the handlers can get a pointer
   // to the source of the message.
   ResourceMessageFilter* filter_;
 
   Observer* observer_;
 
   static bool is_prefetch_enabled_;
+  static bool allow_cross_origin_auth_prompt_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHost);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_H_