tree f74dc466187d9f645b44e4c0c7e3c3b3623246a4
parent d3b30670f2846ebe0a84dfc6bf7bc8a8c38ed110
author Colin Cross <ccross@android.com> 1606860021 -0800
committer Colin Cross <ccross@android.com> 1607647168 -0800

Add PackageFile and use it for prebuilt build tools

Add PackageFile that creates a PackageSpec like InstallFile,
but doesn't create the install rule.  Also improve the documentation
on InstallFile and friends, and on HostToolProvider.

Bug: 124313442
Test: m checkbuild
Change-Id: I30f44a2b3833e48d0bb71bf7c45955f88fb00bc8