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

extensions/browser/guest_view/web_view/web_view_permission_helper.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/guest_view/web_view/web_view_permission_helper.h"
 
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/user_metrics.h"
 #include "extensions/browser/api/extensions_api_client.h"
@@ skipping 131 matching lines @@
 WebViewPermissionHelper::~WebViewPermissionHelper() {
 }
 
 // static
 WebViewPermissionHelper* WebViewPermissionHelper::FromFrameID(
     int render_process_id,
     int render_frame_id) {
   WebViewGuest* web_view_guest = WebViewGuest::FromFrameID(
       render_process_id, render_frame_id);
   if (!web_view_guest) {
-    return NULL;
+    return nullptr;
   }
   return web_view_guest->web_view_permission_helper_.get();
 }
 
 // static
 WebViewPermissionHelper* WebViewPermissionHelper::FromWebContents(
       content::WebContents* web_contents) {
   WebViewGuest* web_view_guest = WebViewGuest::FromWebContents(web_contents);
   if (!web_view_guest)
-      return NULL;
+    return nullptr;
   return web_view_guest->web_view_permission_helper_.get();
 }
 
 #if defined(ENABLE_PLUGINS)
 bool WebViewPermissionHelper::OnMessageReceived(
     const IPC::Message& message,
     content::RenderFrameHost* render_frame_host) {
   return web_view_permission_helper_delegate_->OnMessageReceived(
       message, render_frame_host);
 }
@@ skipping 206 matching lines @@
     bool allowed_by_default)
     : callback(callback),
       permission_type(permission_type),
       allowed_by_default(allowed_by_default) {
 }
 
 WebViewPermissionHelper::PermissionResponseInfo::~PermissionResponseInfo() {
 }
 
 }  // namespace extensions