Wires up immersive mode for chrome and mash

ash/common/frame/header_view.h

 // Copyright 2016 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 ASH_COMMON_FRAME_HEADER_VIEW_H_
 #define ASH_COMMON_FRAME_HEADER_VIEW_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
@@ skipping 20 matching lines @@
                               public ShellObserver {
  public:
   // |target_widget| is the widget that the caption buttons act on.
   // |target_widget| is not necessarily the same as the widget the header is
   // placed in. For example, in immersive fullscreen this view may be painted in
   // a widget that slides in and out on top of the main app or browser window.
   // However, clicking a caption button should act on the target widget.
   explicit HeaderView(views::Widget* target_widget);
   ~HeaderView() override;
 
+  void set_is_immersive_delegate(bool value) { is_immersive_delegate_ = value; }
+
   // Schedules a repaint for the entire title.
   void SchedulePaintForTitle();
 
   // Tells the window controls to reset themselves to the normal state.
   void ResetWindowControls();
 
   // Returns the amount of the view's pixels which should be on screen.
   int GetPreferredOnScreenHeight() const;
 
   // Returns the view's preferred height.
@@ skipping 41 matching lines @@
 
   views::ImageView* avatar_icon_;
 
   // View which contains the window caption buttons.
   FrameCaptionButtonContainerView* caption_button_container_;
 
   // The fraction of the header's height which is visible while in fullscreen.
   // This value is meaningless when not in fullscreen.
   double fullscreen_visible_fraction_;
 
+  // Has this instance been set as the ImmersiveFullscreenControllerDelegate?
+  bool is_immersive_delegate_ = true;
+
   DISALLOW_COPY_AND_ASSIGN(HeaderView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_FRAME_HEADER_VIEW_H_