src/vs/workbench/browser/parts/editor/editorPart.ts/EditorPart/layout
class EditorPart:	override layout(width: number, height: number, top: number, left: number): void {
		this._top = top;
		this._left = left;

		// Layout contents
		const contentAreaSize = super.layoutContents(width, height).contentSize;

		// Layout editor container
		this.doLayout(Dimension.lift(contentAreaSize), top, left);
	}