The reland has a lot of additional DCHECKS for easier debugging, so in debug builds it will actually be a ~2x slowdown compared to the old code. The excessive DCHECKS should be removed in a followup CL. Bug: webrtc:9439 Change-Id: I8389cd84f1ca12c29cc6993f0d2cf7e6d7dd8379 Reviewed-on: https://webrtc-review.googlesource.com/101761 Reviewed-by: Åsa Persson <asapersson@webrtc.org> Reviewed-by: Björn Terelius <terelius@webrtc.org> Commit-Queue: Johannes Kron <kron@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24821}