* hore: Move draggable regions implementation from NativeBrowserView into InspectableWebContentsView
The draggable regions implementation is related to WebView, so
InspectableWebContentsView is a more appropriate place to put it there.
Also, this refactoring will allow the subsequent extension of the
WebContentsView API, which will eventually replace BrowserView API.
* fix: Lint error
* fix: Adjusted owner-window
Closes#21666.
This PR is fixing crashes caused by referencing and attempting to modify previously destroyed views.
Before, when a view was destroyed and then the contents were referenced for modification, the system would crash as undefined memory was accessed. This fix explicitly makes the pointer to the destroyed view's contents null, so that this will not happen.
