Fixed segmentation fault in ExtensionErrorUIDefault::ExtensionGlobalError::OnBubbleViewDidClose

chrome/browser/extensions/extension_error_ui_default.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_error_ui_default.h"
 
 #include "base/logging.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ skipping 71 matching lines @@
   return error_ui_->GetBubbleViewAcceptButtonLabel();
 }
 
 string16 ExtensionErrorUIDefault::ExtensionGlobalError::
     GetBubbleViewCancelButtonLabel() {
   return error_ui_->GetBubbleViewCancelButtonLabel();
 }
 
 void ExtensionErrorUIDefault::ExtensionGlobalError::
     OnBubbleViewDidClose(Browser* browser) {
+  // This call deletes error_ui_ (and as a result of error_ui_ destruction,
+  // object pointed by this also gets deleted).
   error_ui_->BubbleViewDidClose();
-  error_ui_->browser_ = NULL;
 }
 
 void ExtensionErrorUIDefault::ExtensionGlobalError::
     BubbleViewAcceptButtonPressed(Browser* browser) {
   error_ui_->BubbleViewAcceptButtonPressed();
 }
 
 void ExtensionErrorUIDefault::ExtensionGlobalError::
     BubbleViewCancelButtonPressed(Browser* browser) {
   error_ui_->BubbleViewCancelButtonPressed();
 }
 
 // static
 ExtensionErrorUI* ExtensionErrorUI::Create(
     ExtensionService* extension_service) {
   return new ExtensionErrorUIDefault(extension_service);
 }