Allow WebUI Tests to use preLoad in HtmlDialogUI.

chrome/test/base/test_tab_strip_model_observer.h

 // 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.
 
 #ifndef CHROME_TEST_BASE_TEST_TAB_STRIP_MODEL_OBSERVER_H_
 #define CHROME_TEST_BASE_TEST_TAB_STRIP_MODEL_OBSERVER_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/tabs/tab_strip_model_observer.h"
-#include "chrome/test/test_navigation_observer.h"
+#include "chrome/test/base/test_navigation_observer.h"
 
 class TabStripModel;
 
 // In order to support testing of print preview, we need to wait for the
 // constrained window to block the current tab, and then observe notifications
 // on the newly added tab's controller to wait for it to be loaded.
 // To support tests registering javascript WebUI handlers, we need to inject
 // the framework & registration javascript before the webui page loads by
 // calling back through the TestTabStripModelObserver::LoadStartObserver when
 // the new page starts loading.
@@ skipping 16 matching lines @@
                                       int index) OVERRIDE;
 
   // |tab_strip_model_| is the object this observes. The constructor will
   // register this as an observer, and the destructor will remove the observer.
   TabStripModel* tab_strip_model_;
 
   DISALLOW_COPY_AND_ASSIGN(TestTabStripModelObserver);
 };
 
 #endif  // CHROME_TEST_BASE_TEST_TAB_STRIP_MODEL_OBSERVER_H_