Revert 71230 to see if it is related to hang on linux interactive_ui_tests....

views/examples/single_split_view_example.h

 // 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.
 
 #ifndef VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_
 #define VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_
 #pragma once
 
 #include "views/controls/single_split_view.h"
 #include "views/examples/example_base.h"
@@ skipping 11 matching lines @@
   virtual std::wstring GetExampleTitle() {
     return L"Single Split View";
   }
 
   virtual void CreateExampleView(views::View* container) {
     SplittedView* splitted_view_1 = new SplittedView();
     SplittedView* splitted_view_2 = new SplittedView();
 
     single_split_view_ = new views::SingleSplitView(
         splitted_view_1, splitted_view_2,
-        views::SingleSplitView::HORIZONTAL_SPLIT,
-        NULL);
+        views::SingleSplitView::HORIZONTAL_SPLIT);
 
     splitted_view_1->SetColor(SK_ColorYELLOW, SK_ColorCYAN);
 
     views::GridLayout* layout = new views::GridLayout(container);
     container->SetLayoutManager(layout);
 
     // Add scroll view.
     views::ColumnSet* column_set = layout->AddColumnSet(0);
     column_set->AddColumn(views::GridLayout::FILL, views::GridLayout::FILL, 1,
                           views::GridLayout::USE_PREF, 0, 0);
@@ skipping 32 matching lines @@
 
   // The SinleSplitView to test.
   views::SingleSplitView* single_split_view_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleSplitViewExample);
 };
 
 }  // namespace examples
 
 #endif  // VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_