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It is just as easy to give the code within those namespaces unique
names. This is more consistent with the naming scheme elsewhere in
chrome/. e.g. ChromeAppsAPIProvider and ChromeContentClient.

Change-Id: I0f79aaf1bb00f61fb6599dfabb9ddf1f5ff4ad23
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1790276Reviewed-by: John Rummell <jrummell@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#694501}