* Electron version: 8.0.0
* Operating system: Linux - Fedora 31 - Kernel 5.4.13-201.fc31.x86_64

### Expected behavior
The local store should persist items even though the app is terminated as soon as the item was added.

### Actual behavior
If the app is terminated in less than 2 seconds after an item is added to local storage, the value is not available after the app is reopened.

### How to reproduce
1. Create a new electron app 
(I used the quick start from the website git clone https://github.com/electron/electron-quick-start)

0. Run the app using `npm start`

0. Run a JavaScript code that adds a new key/value pair to localStorage
````
localStorage.setItem("my-key", "my-value")
````

0. Within 3 seconds, terminate the app (killing the process or pressing Ctrl + C)
NOTE: If the app is closed properly (pressing Alt + F4 or click on the "X"), this issue does not occur.

0. Run the app again

0. Check for the localStorage items
````
localStorage.getItem("my-key")
````
Or in the Application tab from Developer Tools.

Both cases are not available neither the key nor the value
shell/browser/electron_browser_main_parts.h
#ifndef SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
#define SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
#include <list>
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/metrics/field_trial.h"
#include "base/timer/timer.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_main_parts.h"
#include "content/public/common/main_function_params.h"
#include "electron/buildflags/buildflags.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/device/public/mojom/geolocation_control.mojom.h"
#include "ui/views/layout/layout_provider.h"
class BrowserProcess;
class IconManager;