Aura: Support hovering restore & close buttons for full screen apps

chrome/browser/sessions/session_types.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_SESSIONS_SESSION_TYPES_H_
 #define CHROME_BROWSER_SESSIONS_SESSION_TYPES_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 163 matching lines @@
   // Index of the selected tab in tabs; -1 if no tab is selected. After restore
   // this value is guaranteed to be a valid index into tabs.
   //
   // NOTE: when the service is creating SessionWindows, initially this
   // corresponds to SessionTab.tab_visual_index, not the index in
   // tabs. When done creating though, this is set to the index in
   // tabs.
   int selected_tab_index;
 
   // Type of the browser. Currently we only store browsers of type
-  // TYPE_TABBED and TYPE_POPUP.
+  // TYPE_TABBED and TYPE_POPUP, and TYPE_APP.
   // This would be Browser::Type, but that would cause a circular dependency.
   int type;
 
   // If true, the window is constrained.
   //
   // Currently SessionService prunes all constrained windows so that session
   // restore does not attempt to restore them.
   bool is_constrained;
 
   // Timestamp for when this window was last modified.
   base::Time timestamp;
 
   // The tabs, ordered by visual order.
   std::vector<SessionTab*> tabs;
 
   // Is the window maximized, minimized, or normal?
   ui::WindowShowState show_state;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SessionWindow);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_SESSION_TYPES_H_