src/vs/workbench/contrib/mergeEditor/browser/view/mergeEditor.ts/MergeEditor/setLayout
class MergeEditor:	setLayout(newValue: MergeEditorLayoutTypes): void {
		const value = this._layoutMode.value;
		if (value === newValue) {
			return;
		}
		if (newValue === 'mixed') {
			this._grid.moveView(this.inputResultView.view, this._grid.height * .62, this.input1View.view, Direction.Down);
			this._grid.moveView(this.input2View.view, Sizing.Distribute, this.input1View.view, Direction.Right);
		} else {
			this._grid.moveView(this.inputResultView.view, Sizing.Distribute, this.input1View.view, Direction.Right);
		}
		this._layoutMode.value = newValue;
		this._ctxUsesColumnLayout.set(newValue);
	}