Karl Wiberg 1ffb3747bd RTC_LOG(): Internally, pass logging severity as template argument
When the logging severity is statically known, passing it as a
template argument instead of as a function argument saves space at the
call site.

Because this is a constructor, it's not possible to pass template
arguments explicitly---they need to be deduced. So we pass a dummy
function argument whose type encodes the logging severity, and because
the dummy is an empty struct, the ABI generally specifies that this is
a no-op with no runtime cost.

In aggregate, this reduces the size of libjingle_peerconnection_so.so
by 4 kB.

Bug: webrtc:9185
Change-Id: I8118f39dc2aed3be34b2979a239fc0d3dffa969f
Reviewed-on: https://webrtc-review.googlesource.com/74582
Commit-Queue: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23136}
2018-05-07 09:08:14 +00:00
..
2017-11-27 13:56:22 +00:00
2017-12-18 08:44:43 +00:00
2018-02-15 16:10:15 +00:00
2018-02-15 16:10:15 +00:00