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

chrome/browser/sessions/session_service.h

 // Copyright (c) 2011 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_SERVICE_H_
 #define CHROME_BROWSER_SESSIONS_SESSION_SERVICE_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 168 matching lines @@
 
  private:
   typedef std::map<SessionID::id_type, std::pair<int, int> > IdToRange;
   typedef std::map<SessionID::id_type, SessionTab*> IdToSessionTab;
   typedef std::map<SessionID::id_type, SessionWindow*> IdToSessionWindow;
 
 
   // These types mirror Browser::Type, but are re-defined here because these
   // specific enumeration _values_ are written into the session database and
   // are needed to maintain forward compatibility.
-  // Note that we only store browsers of type TYPE_TABBED and TYPE_POPUP.
+  // Note that we only store browsers of type TYPE_TABBED, TYPE_POPUP,
+  // and TYPE_APP.
   enum WindowType {
     TYPE_TABBED = 0,
-    TYPE_POPUP = 1
+    TYPE_POPUP = 1,
+    TYPE_APP = 2
   };
 
   void Init();
 
   // Implementation of RestoreIfNecessary. If |browser| is non-null and we need
   // to restore, the tabs are added to it, otherwise a new browser is created.
   bool RestoreIfNecessary(const std::vector<GURL>& urls_to_open,
                           Browser* browser);
 
   virtual void Observe(int type,
@@ skipping 242 matching lines @@
 
   // Constants used in calculating histogram data.
   const base::TimeDelta save_delay_in_millis_;
   const base::TimeDelta save_delay_in_mins_;
   const base::TimeDelta save_delay_in_hrs_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionService);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_SESSION_SERVICE_H_