Update ConstrainedWindowViews appearance according to mock

chrome/browser/ui/views/constrained_window_frame_simple.h

 // Copyright (c) 2012 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_BROWSER_UI_VIEWS_CONSTRAINED_WINDOW_FRAME_SIMPLE_H_
 #define CHROME_BROWSER_UI_VIEWS_CONSTRAINED_WINDOW_FRAME_SIMPLE_H_
 
+#include "base/memory/scoped_ptr.h"
+#include "ui/views/controls/button/button.h"
 #include "ui/views/window/non_client_view.h"
 
 class ConstrainedWindowViews;
 
+namespace views {
+class ImageButton;
+class LayoutManager;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // ConstrainedWindowFrameView
 // Provides a custom Window frame for ConstrainedWindowViews.
 // Implements a simple window with a minimal frame.
-class ConstrainedWindowFrameSimple : public views::NonClientFrameView {
+class ConstrainedWindowFrameSimple : public views::NonClientFrameView,
+                                     public views::ButtonListener {
  public:
   explicit ConstrainedWindowFrameSimple(ConstrainedWindowViews* container);
   virtual ~ConstrainedWindowFrameSimple() {}
 
+  void SetHeaderView(views::View* view);
+
+  enum ButtonTag {
+    CLOSE_WIDGET
+  };
+
  private:
   // Overridden from views::NonClientFrameView:
   virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
   virtual gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const OVERRIDE;
   virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
   virtual void GetWindowMask(const gfx::Size& size,
-                             gfx::Path* window_mask) OVERRIDE {}
-  virtual void ResetWindowControls() OVERRIDE {}
-  virtual void UpdateWindowIcon() OVERRIDE {}
+                             gfx::Path* window_mask) OVERRIDE;
+  virtual void ResetWindowControls() OVERRIDE;
+  virtual void UpdateWindowIcon() OVERRIDE;
+
+  // Overridden from View:
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+
+  // Overridden from ButtonListener
+  virtual void ButtonPressed(views::Button* sender,
+                             const ui::Event& event) OVERRIDE;
+
+  views::View* CreateDefaultHeaderView();
+
+  views::ImageButton* CreateCloseButton();
+
+  ConstrainedWindowViews* container_;
+
+  views::LayoutManager* layout_;
+
+  // A weak pointer to the view used to render the header.
+  View* header_view_;
 
   DISALLOW_COPY_AND_ASSIGN(ConstrainedWindowFrameSimple);
 };
 #endif  // CHROME_BROWSER_UI_VIEWS_CONSTRAINED_WINDOW_FRAME_SIMPLE_H_