Clear pending events for transient pages when it crashes.

chrome/browser/extensions/extension_event_router.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.
 
 #include "chrome/browser/extensions/extension_event_router.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/runtime/runtime_api.h"
@@ skipping 96 matching lines @@
   registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_TERMINATED,
                  content::NotificationService::AllSources());
   registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
                  content::NotificationService::AllSources());
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
                  content::Source<Profile>(profile_));
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
                  content::Source<Profile>(profile_));
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_INSTALLED,
                  content::Source<Profile>(profile_));
-  // TODO(tessamac): also get notified for background page crash/failure.
 }
 
 ExtensionEventRouter::~ExtensionEventRouter() {}
 
 void ExtensionEventRouter::AddEventListener(
     const std::string& event_name,
     content::RenderProcessHost* process,
     const std::string& extension_id) {
   ListenerProcess listener(process, extension_id);
   DCHECK_EQ(listeners_[event_name].count(listener), 0u) << event_name;
@@ skipping 354 matching lines @@
       break;
     }
     case chrome::NOTIFICATION_EXTENSION_INSTALLED: {
       // Dispatch the onInstalled event.
       const Extension* extension =
           content::Details<const Extension>(details).ptr();
       extensions::RuntimeEventRouter::DispatchOnInstalledEvent(
           profile_, extension);
       break;
     }
-
-    // TODO(tessamac): if background page crashed/failed clear queue.
     default:
       NOTREACHED();
       return;
   }
 }