Replace a bunch of hardcoded URLs with constants from url_constants.h...

chrome/browser/gtk/view_id_util_browsertest.cc

 // Copyright (c) 2009 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/browser.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/gtk/view_id_util.h"
+#include "chrome/common/url_constants.h"
 #include "chrome/test/in_process_browser_test.h"
 
 class ViewIDTest : public InProcessBrowserTest {
  public:
   ViewIDTest() : root_window_(NULL) {}
 
   void CheckViewID(ViewID id, bool should_have) {
     if (!root_window_)
       root_window_ = GTK_WIDGET(browser()->window()->GetNativeHandle());
 
@@ skipping 10 matching lines @@
     CheckViewID(static_cast<ViewID>(i), true);
   }
 
   CheckViewID(VIEW_ID_PREDEFINED_COUNT, false);
 }
 
 IN_PROC_BROWSER_TEST_F(ViewIDTest, Delegate) {
   CheckViewID(VIEW_ID_TAB_0, true);
   CheckViewID(VIEW_ID_TAB_1, false);
 
-  browser()->OpenURL(GURL("about:blank"), GURL(""),
+  browser()->OpenURL(GURL(chrome::kAboutBlankURL), GURL(),
                      NEW_BACKGROUND_TAB, PageTransition::TYPED);
 
   CheckViewID(VIEW_ID_TAB_0, true);
   CheckViewID(VIEW_ID_TAB_1, true);
 }