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To support unbundled updates we need to stop depending on system
libraries. Disable using the system version of libjpeg and instead link
Chromium's libjpeg_turbo.

This increases binary size by ~120KB.

BUG=409851

Review URL: https://codereview.chromium.org/548513002

Cr-Commit-Position: refs/heads/master@{#293663}