Make panel adjust bounds per preferred size change notification on Windows.

chrome/browser/ui/browser_navigator.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_navigator.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "chrome/browser/browser_about_handler.h"
@@ skipping 456 matching lines @@
     } else if (params->path_behavior == NavigateParams::IGNORE_AND_NAVIGATE &&
         target->GetURL() != params->url) {
       target->controller().LoadURL(
           params->url, params->referrer, params->transition);
     }
 
     // If the singleton tab isn't already selected, select it.
     if (params->source_contents != params->target_contents)
       params->browser->ActivateTabAt(singleton_index, user_initiated);
   }
+
+  NotificationService::current()->Notify(
+      content::NOTIFICATION_TAB_ADDED,
+      Source<TabContentsDelegate>(params->browser),
+      Details<TabContents>(params->target_contents->tab_contents()));
 }
 
 // Returns the index of an existing singleton tab in |params->browser| matching
 // the URL specified in |params|.
 int GetIndexOfSingletonTab(browser::NavigateParams* params) {
   if (params->disposition != SINGLETON_TAB)
     return -1;
 
   // In case the URL was rewritten by the BrowserURLHandler we need to ensure
   // that we do not open another URL that will get redirected to the rewritten
@@ skipping 27 matching lines @@
                                     rewritten_url, replacements)) {
       params->target_contents = tab;
       return tab_index;
     }
   }
 
   return -1;
 }
 
 }  // namespace browser