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Include the following CLs:

Avoids MSVC warnings about possible value truncation.
https://codereview.chromium.org/515383002/

TBR=agl@chromium.org,pkasting@chromium.org
BUG=

Review URL: https://codereview.chromium.org/521463002

Cr-Commit-Position: refs/heads/master@{#292688}