a1896a649c
A DCHECK added in a recent bugfix, which asserted that a signed 64->32 bit cast did not overflow, has been found to not always pass. We fix this by saturating. BUG=chromium:693868 Review-Url: https://codereview.webrtc.org/2746903002 Cr-Commit-Position: refs/heads/master@{#17209}