use editor font in rename widget

src/vs/editor/contrib/rename/browser/renameInputField.css

@@ -15,7 +15,6 @@
 
 .monaco-editor .rename-box .rename-input {
 	border: 1px solid #39F;
-	font-size: 13px;
 	padding: 4px;
 }
 

src/vs/editor/contrib/rename/browser/renameInputField.ts

@@ -21,6 +21,7 @@ export default class RenameInputField implements IContentWidget, IDisposable {
 	private _domNode: HTMLElement;
 	private _inputField: HTMLInputElement;
 	private _visible: boolean;
+	private _disposables: IDisposable[] = [];
 
 	// Editor.IContentWidget.allowEditorOverflow
 	public allowEditorOverflow: boolean = true;
@@ -28,9 +29,16 @@ export default class RenameInputField implements IContentWidget, IDisposable {
 	constructor(editor: ICodeEditor) {
 		this._editor = editor;
 		this._editor.addContentWidget(this);
+
+		this._disposables.push(editor.onDidChangeConfiguration(e => {
+			if (e.fontInfo) {
+				this.updateFont();
+			}
+		}));
 	}
 
 	public dispose(): void {
+		this._disposables = dispose(this._disposables);
 		this._editor.removeContentWidget(this);
 	}
 
@@ -48,10 +56,22 @@ export default class RenameInputField implements IContentWidget, IDisposable {
 			this._domNode.style.height = `${this._editor.getConfiguration().lineHeight}px`;
 			this._domNode.className = 'monaco-editor rename-box';
 			this._domNode.appendChild(this._inputField);
+
+			this.updateFont();
 		}
 		return this._domNode;
 	}
 
+	private updateFont(): void {
+		if (!this._inputField) {
+			return;
+		}
+
+		const fontInfo = this._editor.getConfiguration().fontInfo;
+		this._inputField.style.fontFamily = fontInfo.fontFamily;
+		this._inputField.style.fontSize = `${ fontInfo.fontSize }px`;
+	}
+
 	public getPosition(): IContentWidgetPosition {
 		return this._visible
 			? { position: this._position, preference: [ContentWidgetPositionPreference.BELOW, ContentWidgetPositionPreference.ABOVE] }