Change extension unload notification to indicate updates....

chrome/browser/extensions/extension_management_api.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.
 
 #include "chrome/browser/extensions/extension_management_api.h"
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 249 matching lines @@
 
   Profile* profile = Source<Profile>(source).ptr();
   CHECK(profile);
 
   ListValue args;
   if (event_name == events::kOnExtensionUninstalled) {
     const std::string& extension_id =
         Details<UninstalledExtensionInfo>(details).ptr()->extension_id;
     args.Append(Value::CreateStringValue(extension_id));
   } else {
-    const Extension* extension = Details<const Extension>(details).ptr();
+    const Extension* extension = NULL;
+    if (event_name == events::kOnExtensionDisabled) {
+      extension = Details<UnloadedExtensionInfo>(details)->extension;
+    } else {
+      extension = Details<const Extension>(details).ptr();
+    }
     CHECK(extension);
     ExtensionService* service = profile->GetExtensionService();
     bool enabled = service->GetExtensionById(extension->id(), false) != NULL;
     args.Append(CreateExtensionInfo(*extension, enabled));
   }
 
   std::string args_json;
   base::JSONWriter::Write(&args, false /* pretty_print */, &args_json);
 
   profile->GetExtensionEventRouter()->DispatchEventToRenderers(
       event_name, args_json, NULL, GURL());
 }