Promote chrome.app.window alwaysOnTop property to stable unwhitelisted

chrome/browser/extensions/api/app_window/app_window_apitest.cc

 // 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.
 
 #include "apps/shell_window.h"
 #include "apps/shell_window_registry.h"
 #include "apps/ui/native_app_window.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
@@ skipping 127 matching lines @@
 
 #endif  // defined(TOOLKIT_VIEWS)
 
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest,
                        WindowsApiAlwaysOnTopWithPermissions) {
   EXPECT_TRUE(RunPlatformAppTest(
       "platform_apps/windows_api_always_on_top/has_permissions")) << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest,
-                       WindowsApiAlwaysOnTopWithPermissionsStable) {
-  ScopedCurrentChannel channel(chrome::VersionInfo::CHANNEL_STABLE);
-  EXPECT_TRUE(RunPlatformAppTestWithFlags(
-      "platform_apps/windows_api_always_on_top/has_permissions_stable",
-      ExtensionApiTest::kFlagIgnoreManifestWarnings)) << message_;
-}
-
-IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest,
                        WindowsApiAlwaysOnTopNoPermissions) {
   EXPECT_TRUE(RunPlatformAppTest(
       "platform_apps/windows_api_always_on_top/no_permissions")) << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, WindowsApiGet) {
   EXPECT_TRUE(RunPlatformAppTest("platform_apps/windows_api_get"))
       << message_;
 }
 
 }  // namespace extensions