Turn NULL used as int to 0.

chrome/renderer/render_view.cc

 // Copyright (c) 2009 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/renderer/render_view.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 1298 matching lines @@
 
   int32 routing_id = MSG_ROUTING_NONE;
   bool user_gesture = creator->isProcessingUserGesture();
 
   render_thread_->Send(
       new ViewHostMsg_CreateWindow(routing_id_, user_gesture, &routing_id));
   if (routing_id == MSG_ROUTING_NONE)
     return NULL;
 
   RenderView* view = RenderView::Create(render_thread_,
-                                        NULL,
+                                        0,
                                         routing_id_,
                                         renderer_preferences_,
                                         webkit_preferences_,
                                         shared_popup_counter_,
                                         routing_id);
   view->opened_by_user_gesture_ = user_gesture;
 
   // Record the security origin of the creator.
   GURL creator_url(creator->securityOrigin().toString().utf8());
   if (!creator_url.is_valid() || !creator_url.IsStandard())
@@ skipping 2319 matching lines @@
   message->EnableMessagePumping();  // Runs a nested message loop.
 #endif
 
   bool rv = Send(message);
 
   PluginChannelHost::Broadcast(
       new PluginMsg_ResetModalDialogEvent(host_window_));
 
   return rv;
 }