Introduce new WebApp header style for hosted apps and fizzy apps on ash.

chrome/browser/ui/views/frame/webapp_header_painter_ash.h

+// Copyright 2014 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_FRAME_WEBAPP_HEADER_PAINTER_ASH_H_
+#define CHROME_BROWSER_UI_VIEWS_FRAME_WEBAPP_HEADER_PAINTER_ASH_H_
+
+#include "ash/frame/default_header_painter.h"
+
+namespace ash {
+class FrameCaptionButton;
+class FrameCaptionButtonContainerView;
+}
+
+namespace views {
+class View;
+class Widget;
+}
+
+// Helper class for painting the WebApp style window header.
+class WebAppHeaderPainterAsh : public ash::DefaultHeaderPainter {
+ public:
+  WebAppHeaderPainterAsh();
+  virtual ~WebAppHeaderPainterAsh();
+
+  // WebAppHeaderPainter does not take ownership of any of the parameters.
+  void InitForWebApp(
+      views::Widget* frame,
+      views::View* header_view,
+      ash::FrameCaptionButton* back_button,
+      ash::FrameCaptionButtonContainerView* caption_button_container);
+
+ private:
+  // DefaultHeaderPainter overrides:
+  virtual void LayoutHeader() OVERRIDE;
+  virtual views::View* GetViewToLeftOfTitle() const OVERRIDE;
+
+  ash::FrameCaptionButton* back_button_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebAppHeaderPainterAsh);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_WEBAPP_HEADER_PAINTER_ASH_H_