Roll chromium_revision bef80d93b4..ffa157bf17 (475256:475257)
Roll chromium_revision bef80d93b4..ffa157bf17 (475256:475257)

Change log: https://chromium.googlesource.com/chromium/src/+log/bef80d93b4..ffa157bf17
Full diff: https://chromium.googlesource.com/chromium/src/+/bef80d93b4..ffa157bf17

Changed dependencies:
* src/ios: https://chromium.googlesource.com/chromium/src/ios/+log/878a49c699..90d2f06a9f
DEPS diff: https://chromium.googlesource.com/chromium/src/+/bef80d93b4..ffa157bf17/DEPS

No update to Clang.

TBR=
BUG=None

Review-Url: https://codereview.webrtc.org/2908913002
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#18290}

TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc