Implement AnalyserNode
<s>Needs https://github.com/servo/media/pull/127 to land (and a dependency
update)</s>
r? @ferjm
realtimeanalyser-fft-scaling.html, the test that actually checks for some level of FFT correctness, sadly doesn't work since we don't process nodes not connected to the destination.
However I locally fixed the test to work differently and it passed. We'll fix the processing model eventually.
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Try to unlock the global lock in StructuredLogger after reloading log…
…ging
This should finally fix all the websockets related failures we've been
seeing lately.
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I always see a bunch of time in our profiles in the iterator over the
declarations, this ensures it's not something dumb.
I suspect it's just a bunch of cache misses from walking the rule tree but in
any case this is consistent with the other getters we have and such.
Differential Revision: https://phabricator.services.mozilla.com/D5971
I think it used to be the case that all PropertyDeclaration variants had a
DeclaredValueOwned<T> inside. But that's no longer the case, so this abstraction
seems less useful now.
Differential Revision: https://phabricator.services.mozilla.com/D5978
Add llvm to macOS required dependencies in docs
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@gterzian described it [in their comment](https://github.com/servo/servo/issues/21498#issuecomment-415698332) pretty well:
> latest "command line tools" that come with it(and include Apple's version of llvm), it might be that the current default Mac llvm is too old to compile the latest mozjs version(it appeared that after the OS update, no version of clang/llvm was installed until I downloaded the "new" command-line tools for the new OS)
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Mention gstreamer LIB variable for Windows
This got missed.
Ideally we'll get bootstrap to do all of this, but I haven't yet made
bootstrap work properly for Windows.
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