Run clang-modernize -use-nullptr over src/extensions/.

extensions/browser/extension_host.cc

 // Copyright 2014 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 "extensions/browser/extension_host.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 101 matching lines @@
 // ExtensionHost
 
 ExtensionHost::ExtensionHost(const Extension* extension,
                              SiteInstance* site_instance,
                              const GURL& url,
                              ViewType host_type)
     : delegate_(ExtensionsBrowserClient::Get()->CreateExtensionHostDelegate()),
       extension_(extension),
       extension_id_(extension->id()),
       browser_context_(site_instance->GetBrowserContext()),
-      render_view_host_(NULL),
+      render_view_host_(nullptr),
       did_stop_loading_(false),
       document_element_available_(false),
       initial_url_(url),
       extension_function_dispatcher_(browser_context_, this),
       extension_host_type_(host_type) {
   // Not used for panels, see PanelHost.
   DCHECK(host_type == VIEW_TYPE_EXTENSION_BACKGROUND_PAGE ||
          host_type == VIEW_TYPE_EXTENSION_DIALOG ||
          host_type == VIEW_TYPE_EXTENSION_INFOBAR ||
          host_type == VIEW_TYPE_EXTENSION_POPUP);
@@ skipping 87 matching lines @@
                             const content::NotificationSource& source,
                             const content::NotificationDetails& details) {
   switch (type) {
     case extensions::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED:
       // The extension object will be deleted after this notification has been
       // sent. NULL it out so that dirty pointer issues don't arise in cases
       // when multiple ExtensionHost objects pointing to the same Extension are
       // present.
       if (extension_ == content::Details<UnloadedExtensionInfo>(details)->
           extension) {
-        extension_ = NULL;
+        extension_ = nullptr;
       }
       break;
     default:
       NOTREACHED() << "Unexpected notification sent.";
       break;
   }
 }
 
 void ExtensionHost::RenderProcessGone(base::TerminationStatus status) {
   // During browser shutdown, we may use sudden termination on an extension
@@ skipping 194 matching lines @@
   return delegate_->CheckMediaAccessPermission(
       web_contents, security_origin, type, extension());
 }
 
 bool ExtensionHost::IsNeverVisible(content::WebContents* web_contents) {
   ViewType view_type = extensions::GetViewType(web_contents);
   return view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
 }
 
 }  // namespace extensions