Simplify the handling of crashed extensions.

chrome/browser/extensions/extension_host.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_host.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/memory/singleton.h"
@@ skipping 288 matching lines @@
   // popup, for example). When the first ExtensionHost goes away, the extension
   // is unloaded, and any other host that pointed to that extension will have
   // its pointer to it NULLed out so that any attempt to unload a dirty pointer
   // will be averted.
   if (!extension_)
     return;
 
   // TODO(aa): This is suspicious. There can be multiple views in an extension,
   // and they aren't all going to use ExtensionHost. This should be in someplace
   // more central, like EPM maybe.
+  // TODO(aa): Change this name to EXTENSION_HOST_DESTROYED and put a TODO to
+  // stop using it.
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
       content::Source<Profile>(profile_),
       content::Details<ExtensionHost>(this));
 }
 
 void ExtensionHost::InsertInfobarCSS() {
   DCHECK(!is_background_page());
 
   static const base::StringPiece css(
@@ skipping 249 matching lines @@
   browser::Navigate(&params);
 }
 
 
 void ExtensionHost::RenderViewReady() {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_EXTENSION_HOST_CREATED,
       content::Source<Profile>(profile_),
       content::Details<ExtensionHost>(this));
 }