Fix "crashed extension" infobar browser crashes....

chrome/common/notification_type.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_COMMON_NOTIFICATION_TYPE_H_
 #define CHROME_COMMON_NOTIFICATION_TYPE_H_
 
 // This file describes various types used to describe and filter notifications
 // that pass through the NotificationService.
 //
@@ skipping 618 matching lines @@
 
     // Sent before an ExtensionHost is destroyed. The details are
     // an ExtensionHost* and the source is a Profile*.
     EXTENSION_HOST_DESTROYED,
 
     // Sent after an extension render process is created and fully functional.
     // The details are an ExtensionHost*.
     EXTENSION_PROCESS_CREATED,
 
     // Sent when extension render process crashes. The details are
-    // an ExtensionHost*.
+    // an ExtensionHost* and the source is an ExtensionsService*.
     EXTENSION_PROCESS_CRASHED,
 
     // Sent when the contents or order of toolstrips in the shelf model change.
     EXTENSION_SHELF_MODEL_CHANGED,
 
     // Sent when a background page is ready so other components can load.
     EXTENSION_BACKGROUND_PAGE_READY,
 
     // Sent by an extension to notify the browser about the results of a unit
     // test.
@@ skipping 21 matching lines @@
 };
 
 inline bool operator==(NotificationType::Type a, NotificationType b) {
   return a == b.value;
 }
 inline bool operator!=(NotificationType::Type a, NotificationType b) {
   return a != b.value;
 }
 
 #endif  // CHROME_COMMON_NOTIFICATION_TYPE_H_