Create a message filter for message port messages. This allows a nice cleanu...

chrome/browser/renderer_host/resource_dispatcher_host.cc

 // Copyright (c) 2010 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 "chrome/browser/renderer_host/resource_dispatcher_host.h"
 
 #include <set>
 #include <vector>
@@ skipping 1500 matching lines @@
     int* render_view_host_id) {
   const ResourceDispatcherHostRequestInfo* info = InfoForRequest(request);
   if (!info) {
     *render_process_host_id = -1;
     *render_view_host_id = -1;
     return false;
   }
 
   // If the request is from the worker process, find a tab that owns the worker.
   if (info->process_type() == ChildProcessInfo::WORKER_PROCESS) {
-    const WorkerProcessHost::WorkerInstance* worker_instance =
-        WorkerService::GetInstance()->FindWorkerInstance(info->child_id());
-    if (!worker_instance) {
+    // Need to display some related UI for this network request - pick an
+    // arbitrary parent to do so.
+    if (!WorkerService::GetInstance()->GetRendererForWorker(
+            info->child_id(), render_process_host_id, render_view_host_id)) {
       *render_process_host_id = -1;
       *render_view_host_id = -1;
       return false;
     }
-    DCHECK(!worker_instance->worker_document_set()->IsEmpty());
-    const WorkerDocumentSet::DocumentInfoSet& parents =
-        worker_instance->worker_document_set()->documents();
-    // Need to display some related UI for this network request - pick an
-    // arbitrary parent to do so.
-    *render_process_host_id = parents.begin()->renderer_id();
-    *render_view_host_id = parents.begin()->render_view_route_id();
   } else {
     *render_process_host_id = info->child_id();
     *render_view_host_id = info->route_id();
   }
   return true;
 }
 
 void ResourceDispatcherHost::AddObserver(Observer* obs) {
   observer_list_.AddObserver(obs);
 }
@@ skipping 350 matching lines @@
   return is_prefetch_enabled_;
 }
 
 // static
 void ResourceDispatcherHost::set_is_prefetch_enabled(bool value) {
   is_prefetch_enabled_ = value;
 }
 
 // static
 bool ResourceDispatcherHost::is_prefetch_enabled_ = false;