Do not save the position after the window is hidden

extensions/browser/app_window/app_window.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 "extensions/browser/app_window/app_window.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 43 matching lines @@
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/display/screen.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 
 #if !defined(OS_MACOSX)
 #include "components/prefs/pref_service.h"
 #include "extensions/browser/pref_names.h"
 #endif
 
+#include "ui/aura/window.h"
+
 using content::BrowserContext;
 using content::ConsoleMessageLevel;
 using content::WebContents;
 using web_modal::WebContentsModalDialogHost;
 using web_modal::WebContentsModalDialogManager;
 
 namespace extensions {
 
 namespace {
 
@@ skipping 423 matching lines @@
   if (native_app_window_->IsFullscreen()) {
     if (!IsFullscreen())
       fullscreen_types_ = FULLSCREEN_TYPE_OS;
   } else {
     fullscreen_types_ = FULLSCREEN_TYPE_NONE;
   }
 
   RestoreAlwaysOnTop();  // Same as in SetNativeWindowFullscreen.
 #endif
 
-  SaveWindowPosition();
+  // Do not update the position when the window is no longer visible.
+  if (native_app_window_->GetNativeWindow()->IsVisible())
+    SaveWindowPosition();
 
 #if defined(OS_WIN)
   if (cached_always_on_top_ && !IsFullscreen() &&
       !native_app_window_->IsMaximized() &&
       !native_app_window_->IsMinimized()) {
     UpdateNativeAlwaysOnTop();
   }
 #endif
 
   if (app_window_contents_)
@@ skipping 598 matching lines @@
         region.bounds.x(),
         region.bounds.y(),
         region.bounds.right(),
         region.bounds.bottom(),
         region.draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
   }
   return sk_region;
 }
 
 }  // namespace extensions