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This is a reland of https://chromium-review.googlesource.com/c/chromium/src/+/1613921/, which was reverted (Bug=966547) because
third_party/blink/renderer/devtools/front_end/langpacks/devtools_ui_strings.grd was being picked up by Google's internal localization pipeline.

Bug=941561

Change-Id: I9a97e16e367716189d34944b76605c9321d47092
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1627921Reviewed-by: Joel Einbinder <einbinder@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Commit-Queue: Lorne Mitchell <lomitch@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#664013}