Electron Releases

Description of Change

Debug #47187 by:

1. Adding SEQUENCE_CHECKER for InspectableWebContents and DCHECK_CALLED_ON_VALID_SEQUENCE to InspectableWebContents::LoadCompleted
2. Adding DCHECK(!owner_window_.WasInvalidated()) to ensure window of the webContents holding the devtools is valid
3. Adding DCHECK_EQ(handle->owner_window(), nullptr) to ensure the devtools does not have a owner window

Checklist

• PR description included and stakeholders cc'd
• npm test passes
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, and past tense.

Release Notes

Notes: none