linux - enable WCO by default if custom title is used (microsoft#227065)

Author: bpasero

src/vs/platform/window/common/window.ts

@@ -14,7 +14,6 @@ import { NativeParsedArgs } from 'vs/platform/environment/common/argv';
 import { FileType } from 'vs/platform/files/common/files';
 import { ILoggerResource, LogLevel } from 'vs/platform/log/common/log';
 import { PolicyDefinition, PolicyValue } from 'vs/platform/policy/common/policy';
-import product from 'vs/platform/product/common/product';
 import { IPartsSplash } from 'vs/platform/theme/common/themeService';
 import { IUserDataProfile } from 'vs/platform/userDataProfile/common/userDataProfile';
 import { IAnyWorkspaceIdentifier, ISingleFolderWorkspaceIdentifier, IWorkspaceIdentifier } from 'vs/platform/workspace/common/workspace';
@@ -240,8 +239,6 @@ export function useWindowControlsOverlay(configurationService: IConfigurationSer
 		if (typeof setting === 'boolean') {
 			return setting;
 		}
-
-		return product.quality !== 'stable'; // disable by default in stable for now (TODO@bpasero TODO@benibenj flip when custom title is default)
 	}
 
 	// Default to true.

src/vs/workbench/electron-sandbox/desktop.contribution.ts

@@ -28,7 +28,6 @@ import { NativeWindow } from 'vs/workbench/electron-sandbox/window';
 import { ModifierKeyEmitter } from 'vs/base/browser/dom';
 import { applicationConfigurationNodeBase, securityConfigurationNodeBase } from 'vs/workbench/common/configuration';
 import { MAX_ZOOM_LEVEL, MIN_ZOOM_LEVEL } from 'vs/platform/window/electron-sandbox/window';
-import product from 'vs/platform/product/common/product';
 
 // Actions
 (function registerActions(): void {
@@ -240,7 +239,7 @@ import product from 'vs/platform/product/common/product';
 				'type': 'boolean',
 				'included': isLinux,
 				'markdownDescription': localize('window.experimentalControlOverlay', "Show the native window controls when {0} is set to `custom` (Linux only).", '`#window.titleBarStyle#`'),
-				'default': product.quality !== 'stable', // TODO@bpasero disable by default in stable for now (TODO@bpasero TODO@benibenj flip when custom title is default)
+				'default': true
 			},
 			'window.customTitleBarVisibility': {
 				'type': 'string',