Summary:
After the upgrade to Electron in `92cdb81`, the reload functionality no
longer works. I believe this is due to the main menu creation being
moved to the main process where the `window` global variable is undefined
(whereas previously it was on the render process, where `window` would
be defined). Rather than rely on the `window` global, when a reload is
requested just reload the given `focusedWindow`.
Similarly, zooming was also broken, so fix that by going through `focusedWindow` rather than `webFrame` (since `webFrame` only exists in the render process).
Fixes https://github.com/facebook/flipper/issues/3839, https://github.com/facebook/flipper/issues/3820
## Changelog
changelog: Fixed reload & zoom in Flipper Desktop application.
Pull Request resolved: https://github.com/facebook/flipper/pull/3840
Test Plan: Built the application locally, verified that reload worked as expected (and would reload the application), verified that zooming (in, out, actual size) worked as expected.
Reviewed By: passy
Differential Revision: D38784319
Pulled By: mweststrate
fbshipit-source-id: c219063a8aaf42425678c2c8824f6fcde1cadd52
efdc7e58c4
