Android: Build .pak resource whitelist without linking libwebviewchromium.so

Speeds up android-binary-size trybot by not having to link
libwebviewchromium.so in order to build monochrome's .pak files.
Each link is about 8 minutes on the bot.

On my speedy machine, extracting the whitelist takes < 2 seconds even
without any concurrency.

Tested that the whitelist matches what it was before (and the
android-binary-size trybot shows this as well).

Bug: 1078460
Change-Id: Idac3ba2cb64842539e2f1e2319f35d2495172a4b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2254533
Reviewed-by: Richard Coles <torne@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@google.com>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#781106}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 2930c1a5312ff510c09af6416ab656a6bc7f44ce
1 file changed