Whitelisting exts and plugins from cross-site document blocking

content/child/resource_dispatcher.cc

 // 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
 
 #include "content/child/resource_dispatcher.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 165 matching lines @@
 // Writes a footer on the message and sends it
 bool IPCResourceLoaderBridge::Start(Peer* peer) {
   if (request_id_ != -1) {
     NOTREACHED() << "Starting a request twice";
     return false;
   }
 
   peer_ = peer;
 
   // generate the request ID, and append it to the message
-  request_id_ = dispatcher_->AddPendingRequest(
-      peer_, request_.resource_type, frame_origin_, request_.url);
+  request_id_ = dispatcher_->AddPendingRequest(peer_,
+                                               request_.resource_type,
+                                               request_.origin_pid,
+                                               frame_origin_,
+                                               request_.url);
 
   return dispatcher_->message_sender()->Send(
       new ResourceHostMsg_RequestResource(routing_id_, request_id_, request_));
 }
 
 void IPCResourceLoaderBridge::Cancel() {
   if (request_id_ < 0) {
     NOTREACHED() << "Trying to cancel an unstarted request";
     return;
   }
@@ skipping 150 matching lines @@
     if (new_peer)
       request_info->peer = new_peer;
   }
 
   ResourceResponseInfo renderer_response_info;
   ToResourceResponseInfo(*request_info, response_head, &renderer_response_info);
   SiteIsolationPolicy::OnReceivedResponse(request_id,
                                           request_info->frame_origin,
                                           request_info->response_url,
                                           request_info->resource_type,
+                                          request_info->origin_pid,
                                           renderer_response_info);
   request_info->peer->OnReceivedResponse(renderer_response_info);
 }
 
 void ResourceDispatcher::OnReceivedCachedMetadata(
       int request_id, const std::vector<char>& data) {
   PendingRequestInfo* request_info = GetPendingRequestInfo(request_id);
   if (!request_info)
     return;
 
@@ skipping 171 matching lines @@
   // The request ID will be removed from our pending list in the destructor.
   // Normally, dispatching this message causes the reference-counted request to
   // die immediately.
   peer->OnCompletedRequest(error_code, was_ignored_by_handler, security_info,
                            renderer_completion_time);
 }
 
 int ResourceDispatcher::AddPendingRequest(
     ResourceLoaderBridge::Peer* callback,
     ResourceType::Type resource_type,
+    int origin_pid,
     const GURL& frame_origin,
     const GURL& request_url) {
   // Compute a unique request_id for this renderer process.
   int id = MakeRequestID();
-  pending_requests_[id] =
-      PendingRequestInfo(callback, resource_type, frame_origin, request_url);
+  pending_requests_[id] = PendingRequestInfo(
+      callback, resource_type, origin_pid, frame_origin, request_url);
   return id;
 }
 
 bool ResourceDispatcher::RemovePendingRequest(int request_id) {
   PendingRequestList::iterator it = pending_requests_.find(request_id);
   if (it == pending_requests_.end())
     return false;
 
   SiteIsolationPolicy::OnRequestComplete(request_id);
   PendingRequestInfo& request_info = it->second;
@@ skipping 52 matching lines @@
 ResourceDispatcher::PendingRequestInfo::PendingRequestInfo()
     : peer(NULL),
       resource_type(ResourceType::SUB_RESOURCE),
       is_deferred(false),
       buffer_size(0) {
 }
 
 ResourceDispatcher::PendingRequestInfo::PendingRequestInfo(
     webkit_glue::ResourceLoaderBridge::Peer* peer,
     ResourceType::Type resource_type,
+    int origin_pid,
     const GURL& frame_origin,
     const GURL& request_url)
     : peer(peer),
       resource_type(resource_type),
+      origin_pid(origin_pid),
       is_deferred(false),
       url(request_url),
       frame_origin(frame_origin),
       response_url(request_url),
       request_start(base::TimeTicks::Now()) {
 }
 
 ResourceDispatcher::PendingRequestInfo::~PendingRequestInfo() {}
 
 void ResourceDispatcher::DispatchMessage(const IPC::Message& message) {
@@ skipping 152 matching lines @@
 void ResourceDispatcher::ReleaseResourcesInMessageQueue(MessageQueue* queue) {
   while (!queue->empty()) {
     IPC::Message* message = queue->front();
     ReleaseResourcesInDataMessage(*message);
     queue->pop_front();
     delete message;
   }
 }
 
 }  // namespace content