Unify window fullscreen and minimizing implementation

components/sessions/core/session_service_commands.cc

 // 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.
 
 #include "components/sessions/core/session_service_commands.h"
 
 #include <stdint.h>
 #include <string.h>
 
 #include <utility>
@@ skipping 96 matching lines @@
 // never change.
 enum PersistedWindowShowState {
   // SHOW_STATE_DEFAULT (0) never persisted.
   PERSISTED_SHOW_STATE_NORMAL = 1,
   PERSISTED_SHOW_STATE_MINIMIZED = 2,
   PERSISTED_SHOW_STATE_MAXIMIZED = 3,
   // SHOW_STATE_INACTIVE (4) never persisted.
   PERSISTED_SHOW_STATE_FULLSCREEN = 5,
   PERSISTED_SHOW_STATE_DETACHED_DEPRECATED = 6,
   PERSISTED_SHOW_STATE_DOCKED = 7,
-  PERSISTED_SHOW_STATE_END = 7
+  // SHOW_STATE_PREVIOUS (8) never persisted.
+  PERSISTED_SHOW_STATE_PREVIOUS = 8,
+  PERSISTED_SHOW_STATE_END = 8
 };
 
 using IdToSessionTab =
     std::map<SessionID::id_type, std::unique_ptr<SessionTab>>;
 using IdToSessionWindow =
     std::map<SessionID::id_type, std::unique_ptr<SessionWindow>>;
 
 // Assert to ensure PersistedWindowShowState is updated if ui::WindowShowState
 // is changed.
 static_assert(ui::SHOW_STATE_END ==
@@ skipping 12 matching lines @@
       return PERSISTED_SHOW_STATE_MAXIMIZED;
     case ui::SHOW_STATE_FULLSCREEN:
       return PERSISTED_SHOW_STATE_FULLSCREEN;
     case ui::SHOW_STATE_DOCKED:
       return PERSISTED_SHOW_STATE_DOCKED;
 
     case ui::SHOW_STATE_DEFAULT:
     case ui::SHOW_STATE_INACTIVE:
       return PERSISTED_SHOW_STATE_NORMAL;
 
+    case ui::SHOW_STATE_PREVIOUS:
     case ui::SHOW_STATE_END:
       break;
   }
   NOTREACHED();
   return PERSISTED_SHOW_STATE_NORMAL;
 }
 
 // Lints show state values when read back from persited disk.
 ui::WindowShowState PersistedShowStateToShowState(int state) {
   switch (state) {
@@ skipping 733 matching lines @@
     SortTabsBasedOnVisualOrderAndClear(&windows, valid_windows);
     UpdateSelectedTabIndex(valid_windows);
   }
   // AddTabsToWindows should have processed all the tabs.
   DCHECK_EQ(0u, tabs.size());
   // SortTabsBasedOnVisualOrderAndClear should have processed all the windows.
   DCHECK_EQ(0u, windows.size());
 }
 
 }  // namespace sessions