Fix renderer hang caused when a synchronous XHR is disallowed for security...

chrome/browser/renderer_host/resource_handler.h

 // Copyright (c) 2006-2008 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 RenderProcessHosts, and dispatches them to URLRequests. It then
 // fowards the messages from the URLRequests back to the correct process for
 // handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_
 
 #include <string>
 
 #include "chrome/common/filter_policy.h"
 #include "net/url_request/url_request_status.h"
 #include "webkit/glue/resource_loader_bridge.h"
 
 namespace net {
 class IOBuffer;
 }
 
 // Parameters for a resource response header.
 struct ResourceResponseHead
     : webkit_glue::ResourceLoaderBridge::ResponseInfo {
+  ResourceResponseHead() : filter_policy(FilterPolicy::DONT_FILTER) {}
+
   // The response status.
   URLRequestStatus status;
 
   // Specifies if the resource should be filtered before being displayed
   // (insecure resources can be filtered to keep the page secure).
   FilterPolicy::Type filter_policy;
 };
 
 // Parameters for a synchronous resource response.
 struct SyncLoadResult : ResourceResponseHead {
@@ skipping 45 matching lines @@
   virtual bool OnReadCompleted(int request_id, int* bytes_read) = 0;
 
   // The response is complete.  The final response status is given.
   // Returns false if the handler is deferring the call to a later time.
   virtual bool OnResponseCompleted(int request_id,
                                    const URLRequestStatus& status,
                                    const std::string& security_info) = 0;
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_