Fix pinned tab link navigations.

chrome/common/renderer_preferences.h

Index: chrome/common/renderer_preferences.h
diff --git a/chrome/common/renderer_preferences.h b/chrome/common/renderer_preferences.h
index 7a55b173c4a295ea792d8ae9c101300bd947c67e..be6524e76ca23db59872c5c417ef27567dc4d482 100644
--- a/chrome/common/renderer_preferences.h
+++ b/chrome/common/renderer_preferences.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 //
@@ -63,7 +63,8 @@ struct RendererPreferences {
   SkColor inactive_selection_bg_color;
   SkColor inactive_selection_fg_color;
 
-  // Browser wants a look at all top level requests
+  // Browser wants a look at all top level requests. This is set to true for
+  // external tabs and pinned tabs.
   bool browser_handles_top_level_requests;
 
   // Cursor blink rate in seconds.