Roll chromium_revision 1b96d497c1..8af690d4cd (482761:482924)
Roll chromium_revision 1b96d497c1..8af690d4cd (482761:482924)

Change log: https://chromium.googlesource.com/chromium/src/+log/1b96d497c1..8af690d4cd
Full diff: https://chromium.googlesource.com/chromium/src/+/1b96d497c1..8af690d4cd

Changed dependencies:
* src/base: https://chromium.googlesource.com/chromium/src/base/+log/f8bde9c273..9caba2e93e
* src/build: https://chromium.googlesource.com/chromium/src/build/+log/d1d51d3325..ca3fb287a5
* src/ios: https://chromium.googlesource.com/chromium/src/ios/+log/c7dda527c5..85b2b2e903
* src/testing: https://chromium.googlesource.com/chromium/src/testing/+log/5b41a1d1ad..3a078c38c1
* src/third_party: https://chromium.googlesource.com/chromium/src/third_party/+log/15594769ca..1a75b4f870
* src/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/bdff8501d7..89832b5327
* src/tools: https://chromium.googlesource.com/chromium/src/tools/+log/44e2f6ae79..7c1cc25ee4
DEPS diff: https://chromium.googlesource.com/chromium/src/+/1b96d497c1..8af690d4cd/DEPS

No update to Clang.

TBR=
BUG=None
CQ_INCLUDE_TRYBOTS=master.internal.tryserver.corp.webrtc:linux_internal

Review-Url: https://codereview.webrtc.org/2956153004
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#18804}

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