[Docking] Persists docked state on Chrome OS

ui/views/widget/native_widget_mac.mm

 // 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 "ui/views/widget/native_widget_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
@@ skipping 327 matching lines @@
     return;
 
   switch (state) {
     case ui::SHOW_STATE_DEFAULT:
     case ui::SHOW_STATE_NORMAL:
     case ui::SHOW_STATE_INACTIVE:
       break;
     case ui::SHOW_STATE_MINIMIZED:
     case ui::SHOW_STATE_MAXIMIZED:
     case ui::SHOW_STATE_FULLSCREEN:
+    case ui::SHOW_STATE_DOCKED:
       NOTIMPLEMENTED();
       break;
     case ui::SHOW_STATE_END:
       NOTREACHED();
       break;
   }
   bridge_->SetVisibilityState(state == ui::SHOW_STATE_INACTIVE
       ? BridgedNativeWidget::SHOW_INACTIVE
       : BridgedNativeWidget::SHOW_AND_ACTIVATE_WINDOW);
 }
@@ skipping 274 matching lines @@
 }
 
 // static
 gfx::FontList NativeWidgetPrivate::GetWindowTitleFontList() {
   NOTIMPLEMENTED();
   return gfx::FontList();
 }
 
 }  // namespace internal
 }  // namespace views