Make framless window draggable on LInux

src/vs/code/electron-main/window.ts

@@ -590,7 +590,7 @@ export class CodeWindow implements ICodeWindow {
 		// Theme
 		windowConfiguration.baseTheme = this.getBaseTheme();
 		windowConfiguration.backgroundColor = this.getBackgroundColor();
-		windowConfiguration.hiddenTitleBar = this.hasHiddenTitleBarStyle();
+		windowConfiguration.frameless = this.hasHiddenTitleBarStyle() && !isMacintosh;
 
 		// Perf Counters
 		windowConfiguration.perfEntries = exportEntries();

src/vs/platform/windows/common/windows.ts

@@ -323,7 +323,7 @@ export interface IWindowConfiguration extends ParsedArgs, IOpenFileRequest {
 	highContrast?: boolean;
 	baseTheme?: string;
 	backgroundColor?: string;
-	hiddenTitleBar?: boolean;
+	frameless?: boolean;
 	accessibilitySupport?: boolean;
 
 	perfEntries: PerformanceEntry[];

src/vs/workbench/electron-browser/bootstrap/preload.js

@@ -23,8 +23,8 @@
 		const baseTheme = config.baseTheme || 'vs';
 		document.body.className = 'monaco-shell ' + baseTheme;
 
-		// makes the window draggable if there is no frame on Windows
-		if  (config.execPath.endsWith('exe') && config.hiddenTitleBar) {
+		// makes the window draggable if there is no frame
+		if  (config.frameless) {
 			document.documentElement.style.webkitAppRegion = 'drag';
 			document.documentElement.style.height = '100%';
 		}