src/vs/editor/browser/widget/diffEditorWidget.ts/DiffEditorWidget/restoreViewState
class DiffEditorWidget:	public restoreViewState(s: editorCommon.IDiffEditorViewState): void {
		if (s && s.original && s.modified) {
			const diffEditorState = <editorCommon.IDiffEditorViewState>s;
			this._originalEditor.restoreViewState(diffEditorState.original);
			this._modifiedEditor.restoreViewState(diffEditorState.modified);
		}
	}