Update to current chromedp.

[QuLogic]

They've added a new argument to WaitFunc, which I've just decided to ignore, as it seems to work without using it for anything.

[aykevl]

Can you please run go mod tidy to clean up go.sum?
If that doesn't work, you can try adding an (empty) go.mod file to some directories (src, llvm-project, llvm-build, build, lib). That is a way to make the Go toolchain ignore those directories (they will be considered a new module).

Other than that it looks reasonable. Pinging @bradleypeabody in case he wants to comment on it.

[bradleypeabody]

It looks like the latest tag on the chromedp project is v0.6.4.

This PR is using v0.5.4.

@QuLogic Is there any reason not to upgrade to the latest version? If not, I think that would best.

[QuLogic]

Can you please run go mod tidy to clean up go.sum?

I did; it doesn't really ever delete anything.

@QuLogic Is there any reason not to upgrade to the latest version? If not, I think that would best.

It was simply not the latest version at the time.

[bradleypeabody]

Cool, LGTM.

I suspect the extra go.sum entries are due to this: golang/go#33008. I suggest not worrying about it for now and let it get cleaned up later with Go 1.16.

[deadprogram]

Thanks for this contribution @QuLogic and thanks @bradleypeabody for reviewing.

Now merging.