[Pkg-chromium-maint] Bug#848895: Chromium freezes randomly

[Luke Kenneth Casson Leighton]

haaa!  finally... after waiting for well over a week, at last!  the
bug *did* in fact reoccur.
just to make sure we're on the right page this is from the chrome://version

Chromium 56.0.2924.76 (Developer Build) built on Debian 9.0, running
on Debian 7.4 (64-bit)
Revision 314da7cc1e56fc9fa9271bac2b029922feb4b6f2

now, here's the circumstances:

* i was using facebook "chat" web variant (don't tell no-one in the
software libre world that, ok? :)
* CPU usage climbed *really* high - 3 processes each hit around 20%
and the CPU speed had to jump to around 2ghz to cope (fans came up)
* after flipping to a separate screen (i use fvwm) and returning....
ta-daaaa, freeze!

so whatever has been added that "fixes" the problem does NOT actually
fix the *ACTUAL* underlying race-condition / problem... it just avoids
*most* circumstances where it occurs... but not all.

l.