Support building internal chrome

Add @portage_deps//:chrome-internal-{version}_src as a dependency when chrome_internal USE flag is set.

BUG=b:331721718
TEST=USE=chrome_internal BOARD=amd64-generic USE_REMOTEEXEC=true bazel
build @portage//target/chromeos-base/chromeos-chrome

Change-Id: I50ded70f5416904339555e0d45c236fd631e43fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/bazel/+/5446371
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Commit-Queue: Ryo Hashimoto <hashimoto@chromium.org>
Tested-by: Ryo Hashimoto <hashimoto@chromium.org>
Reviewed-by: Shuhei Takahashi <nya@chromium.org>
6 files changed