src/vs/editor/browser/widget/diffEditorWidget.ts/DiffEditorWidget/saveViewState
class DiffEditorWidget:	public saveViewState(): editorCommon.IDiffEditorViewState {
		const originalViewState = this._originalEditor.saveViewState();
		const modifiedViewState = this._modifiedEditor.saveViewState();
		return {
			original: originalViewState,
			modified: modifiedViewState
		};
	}