Whitelisting exts and plugins from cross-site document blocking

content/child/resource_dispatcher.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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CONTENT_CHILD_RESOURCE_DISPATCHER_H_
 #define CONTENT_CHILD_RESOURCE_DISPATCHER_H_
 
 #include <deque>
@@ skipping 27 matching lines @@
   // Creates a ResourceLoaderBridge for this type of dispatcher, this is so
   // this can be tested regardless of the ResourceLoaderBridge::Create
   // implementation.
   webkit_glue::ResourceLoaderBridge* CreateBridge(
       const webkit_glue::ResourceLoaderBridge::RequestInfo& request_info);
 
   // Adds a request from the pending_requests_ list, returning the new
   // requests' ID
   int AddPendingRequest(webkit_glue::ResourceLoaderBridge::Peer* callback,
                         ResourceType::Type resource_type,
+                        int origin_pid,
                         const GURL& frame_origin,
                         const GURL& request_url);
 
   // Removes a request from the pending_requests_ list, returning true if the
   // request was found and removed.
   bool RemovePendingRequest(int request_id);
 
   // Cancels a request in the pending_requests_ list.
   void CancelPendingRequest(int routing_id, int request_id);
 
@@ skipping 21 matching lines @@
 
  private:
   friend class ResourceDispatcherTest;
 
   typedef std::deque<IPC::Message*> MessageQueue;
   struct PendingRequestInfo {
     PendingRequestInfo();
 
     PendingRequestInfo(webkit_glue::ResourceLoaderBridge::Peer* peer,
                        ResourceType::Type resource_type,
+                       int origin_pid,
                        const GURL& frame_origin,
                        const GURL& request_url);
 
     ~PendingRequestInfo();
 
     webkit_glue::ResourceLoaderBridge::Peer* peer;
     ResourceType::Type resource_type;
+    // The PID of the original process which issued this request. This gets
+    // non-zero only for a request proxied by another renderer, particularly
+    // requests from plugins.
+    int origin_pid;
     MessageQueue deferred_message_queue;
     bool is_deferred;
     // Original requested url.
     GURL url;
     // The security origin of the frame that initiates this request.
     GURL frame_origin;
     // The url of the latest response even in case of redirection.
     GURL response_url;
     linked_ptr<IPC::Message> pending_redirect_message;
     base::TimeTicks request_start;
@@ skipping 93 matching lines @@
 
   // IO thread timestamp for ongoing IPC message.
   base::TimeTicks io_timestamp_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_RESOURCE_DISPATCHER_H_