Better re-share experience

[yoichio]

When I took a trace and tap "Share" button, perfetto generates link like https://ui.perfetto.dev/#!/?s=96c9XXXXX,
I can open that with other browsers. That UX is great, so far.

However, in that browser, address is just https://ui.perfetto.dev/#!/viewer?local_cache_key, that is not good because

• I cannot reshare it with others.
• if I reload the page, that just loads blank https://ui.perfetto.dev/#!/viewer?local_cache_key instead of the shared URL.
• If I open multiple perfetto tabs, no way to remember the tab

So just leaving the shared address https://ui.perfetto.dev/#!/?s=96c9XXXXX on the remote browser address bar sounds fixing all issues.

[stevegolton]

I agree, and I think this would be a nice usability enhancement. I'd be happy to review a PR if you wanted to contribute, otherwise I'll need to make some related changes to the router for a different feature at some point this quarter so I may have some time to look into this then.

[yoichio]

If it is small, I'll do(I don't know perfetto code base at all)

[stevegolton]

I don't think it's the huge change but possibly not the most straightforward as it's right in the guts of the UI trace loading / routing logic. If you wanted to take a crack at it I'd be happy to look at a PR other wise as I say I'll possibly get to it at some point.