b94491d790
It's annoying to have to re-implement this every time I need a debug printout. Declared inline, so that there'll be zero runtime overhead. This CL also modifies a unit test so that it will make use of the new operator<< in case it finds errors. BUG=none Review-Url: https://codereview.webrtc.org/2705203002 Cr-Commit-Position: refs/heads/master@{#16749}