GitLab

This CL is nearly a pure rename.

It renames the ZeroSuggestRedirectToChrome flags and parameters to
OnFocusSuggestionsCustomEndpoint.

I think the new name is more descriptive, as the old name implied to me
that the request was redirected locally to Chrome, when it was actually
redirected to a Chrome-team maintained custom endpoint.

Going forward, we may be using an endpoint that is NOT maintained by
Chrome-team, so this will become particularly inaccurate if we don't do
the rename.

This feature that's being renamed is currently enabled via field trial
for versions up to 76. This CL renames that feature, but the feature is
still enabled by default in the binary, so it should continue with the
server-side specified behavior.

In other words, only 76 binaries without this feature enabled by
default need the server-side config.

That being said, for good measure it may be good to land this in 77.

Bug: 966462
Change-Id: I4c9f1c1ae285f7d1be1a806b2f4c3b6bd8cd47ee
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1633229
Commit-Queue: Tommy Li <tommycli@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665327}