When creating a tab contents for a browser in the RVHDelegateHelper, create a wrapper immediately.

chrome/browser/ui/browser.cc

 // Copyright (c) 2011 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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 3836 matching lines @@
   window()->ShowCollectedCookiesDialog(wrapper);
 }
 
 bool Browser::ShouldAddNavigationToHistory(
     const history::HistoryAddPageArgs& add_page_args,
     content::NavigationType navigation_type) {
   // Don't update history if running as app.
   return !IsApplication();
 }
 
+void Browser::TabContentsCreated(TabContents* new_contents) {
+  // Create a TabContentsWrapper now, so all observers are in place, as the
+  // network requests for its initial navigation will start immediately. The
+  // TabContents will later be inserted into this browser using
+  // Browser::Navigate via AddNewContents. The latter will retrieve the newly
+  // created TabContentsWrapper from TabContents object.
+  new TabContentsWrapper(new_contents);
+}
+
 void Browser::ContentRestrictionsChanged(TabContents* source) {
   UpdateCommandsForContentRestrictionState();
 }
 
 void Browser::RendererUnresponsive(TabContents* source) {
   browser::ShowHungRendererDialog(source);
 }
 
 void Browser::RendererResponsive(TabContents* source) {
   browser::HideHungRendererDialog(source);
@@ skipping 1643 matching lines @@
 }
 
 void Browser::UpdateFullscreenExitBubbleContent() {
   GURL url;
   if (fullscreened_tab_)
     url = fullscreened_tab_->tab_contents()->GetURL();
 
   window_->UpdateFullscreenExitBubbleContent(
       url, GetFullscreenExitBubbleType());
 }