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* Electron version: 1.7.11
* Operating system: win10 x64

i want record every frame to make a video,

### Expected behavior

stop painting page, until call startPainting()

### Actual behavior

not stop painting page

### How to reproduce
```js
const electron = require('electron');
const fs = require('fs');
const app = electron.app
const BrowserWindow = electron.BrowserWindow

let mainWindow

// app.disableHardwareAcceleration()
function createWindow() {
  mainWindow = new BrowserWindow({
    width: 480, height: 800, frame: false, resizable: false, // show: false,
    webPreferences: {
      offscreen: true
    }
  })
  // mainWindow = new BrowserWindow({ width: 480, height: 800 })
  var i = 0;
  mainWindow.webContents.on('paint', (event, dirty, image) => {
    mainWindow.webContents.stopPainting()
    const data = image.toPNG()
    fs.writeFileSync('./f/' + i++ + '.png', data)
    // mainWindow.webContents.startPainting()
  })
  mainWindow.webContents.setFrameRate(1)

  mainWindow.on('closed', function () {
    mainWindow = null
  })
  
  var url = 'https://github.com';
  mainWindow.loadURL(url)
  //mainWindow.webContents.openDevTools()

}

app.on('ready', createWindow)
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})
app.on('activate', function () {
  if (mainWindow === null) {
    createWindow()
  }
})
```

atom/browser/osr/osr_render_widget_host_view.cc
OnCopyFrameCaptureFailure(damage_rect);
      return;
    }
    DCHECK(result->HasBitmap());
    std::unique_ptr<SkBitmap> source = result->TakeBitmap();
    DCHECK(source);
    if (source) {
      base::AutoLock autolock(lock_);
      std::shared_ptr<SkBitmap> bitmap(source.release());
      base::TimeTicks now = base::TimeTicks::Now();
      base::TimeDelta next_frame_in = next_frame_time_ - now;
      if (next_frame_in > frame_duration_ / 4) {
        next_frame_time_ += frame_duration_;
        content::BrowserThread::PostDelayedTask(content::BrowserThread::UI,
          FROM_HERE,
          base::Bind(&AtomCopyFrameGenerator::OnCopyFrameCaptureSuccess,
            weak_ptr_factory_.GetWeakPtr(),
            damage_rect,
            bitmap),
          next_frame_in);
      } else {
        next_frame_time_ = now + frame_duration_;
        OnCopyFrameCaptureSuccess(damage_rect, bitmap);
      }
      frame_retry_count_ = 0;
    } else {
      OnCopyFrameCaptureFailure(damage_rect);
    }
  }
  void OnCopyFrameCaptureFailure(const gfx::Rect& damage_rect) {