Process explorer: update name for service worker process

Steps to Reproduce:

1. Open any webview, ex: open an extension page
2. Open process explorer
3. There will now be a window process with no associated title, it can be mistaken for workbench

Inspecting the window via remote debugging, the following are the location information

"vscode-webview://extensioneditor/service-worker.js?id=bd03d4e0-fea8-4a03-8b…de-resource.vscode-webview.net&parentOrigin=vscode-file%3A%2F%2Fvscode-app"

Service workers are also spawned as renderer processes so it would be good to differentiate them in the explorer.

[deepak1556]

This requires some plumbing work in the runtime, currently chromium doesn’t differentiate the shared worker or service worker which are launched similar to other renderer process via command line arguments, there is lot of internal tracking involved which is what the Task Manager in chrome relies to identify and map these process PID to the correct type.

I will try to add a simple command line arguments to these worker renderers that would let us differentiate them in our process explorer, --renderer-type=service-worker, --renderer-type=shared-worker.

[Tyriar]

If there’s a way to map the PID to a friendly title on another proc that would work as well, that’s how the window names come into the proc explorer:

https://github.com/microsoft/vscode/blob/145e3802769319046f6fb35db76c5ca85b8ae1a1/src/vs/code/electron-sandbox/processExplorer/processExplorerMain.ts#L243-L247

Alternatively, I could just show any window without a title returned above as “service-worker”, but that feels like it will probably fall apart in the future.