views: Move fill_layout.[cc,h] into layout directory.

views/examples/slider_example.h

 // 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.
 
 #ifndef VIEWS_EXAMPLES_SLIDER_EXAMPLE_H_
 #define VIEWS_EXAMPLES_SLIDER_EXAMPLE_H_
 #pragma once
 
 #include "views/controls/slider/slider.h"
 #include "views/examples/example_base.h"
-#include "views/fill_layout.h"
+#include "views/layout/fill_layout.h"
 
 namespace examples {
 
 // SliderExample demonstrates how to use the Slider class.
 class SliderExample : public ExampleBase, views::SliderListener {
  public:
   explicit SliderExample(ExamplesMain* main) : ExampleBase(main) {
   }
 
   virtual ~SliderExample() {}
@@ skipping 21 matching lines @@
 
   views::Slider* slider_;
 
   DISALLOW_COPY_AND_ASSIGN(SliderExample);
 };
 
 }  // namespace examples
 
 #endif  // VIEWS_EXAMPLES_SLIDER_EXAMPLE_H_