Fix crash in DOMUIContents::RenderViewCreated

chrome/browser/dom_ui/dom_ui_contents.cc

 // Copyright (c) 2006-2008 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/dom_ui/dom_ui_contents.h"
 
 #include "chrome/browser/debugger/debugger_contents.h"
 #include "chrome/browser/dom_ui/dev_tools_ui.h"
 #include "chrome/browser/dom_ui/dom_ui.h"
 #include "chrome/browser/dom_ui/downloads_ui.h"
@@ skipping 156 matching lines @@
 WebPreferences DOMUIContents::GetWebkitPrefs() {
   // Get the users preferences then force image loading to always be on.
   WebPreferences web_prefs = WebContents::GetWebkitPrefs();
   web_prefs.loads_images_automatically = true;
   web_prefs.javascript_enabled = true;
 
   return web_prefs;
 }
 
 void DOMUIContents::RenderViewCreated(RenderViewHost* render_view_host) {
-  DCHECK(current_ui_);
-  current_ui_->RenderViewCreated(render_view_host);
+  if (current_ui_)
+    current_ui_->RenderViewCreated(render_view_host);
 }
 
 bool DOMUIContents::ShouldDisplayFavIcon() {
   if (InitCurrentUI(false))
     return current_ui_->ShouldDisplayFavIcon();
   return true;
 }
 
 bool DOMUIContents::IsBookmarkBarAlwaysVisible() {
   if (InitCurrentUI(false))
@@ skipping 101 matching lines @@
     return new DebuggerContents(this);
   }
   if (url.host() == DevToolsUI::GetBaseURL().host()) {
     return new DevToolsUI(this);
   }
 #else
   NOTIMPLEMENTED();
 #endif
   return NULL;
 }