GitLab

No change to production logic, only test shell.

This adds 'system_webview_shell_package_name' to configure WebView
shell's package name. This is handy for Android emulators, because the
default package name will cause signature mismatches.

I kept the original documentation (for removing the shell from the
system image) because it may be relevant for some use cases. But I hope
the GN arg is a simpler solution for most developers.

Fixed: 1061211
Test: $OUT/bin/system_webview_shell_apk package-info (verify name)
Test: $OUT/bin/system_webview_shell_apk install (succeeds on emulator)
Test: Upload to gerrit > open file > click "gitiles" > verify markdown
Change-Id: I24a35524bc5042da33b8203637ec67a0f610f363
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2101859Reviewed-by: Hazem Ashmawy <hazems@chromium.org>
Commit-Queue: Nate Fischer <ntfschr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#750249}