Adds a BootclasspathDepsMutator that is currently only implemented by
the platform_bootclasspath but which can be implemented by
bootclasspath_fragment too.
Bug: 177892522
Test: m nothing
Change-Id: Ibe35854281004d6e40bf1f797144fb582e8c08b9
The platform_bootclasspath and bootclasspath_fragment modules provide
different capabilities but are related and so have some common
functionality. This change moves some platform_bootclasspath code that
will be of use for bootclasspath_fragment in future into a separate
file.
Bug: 177892522
Test: m nothing
Change-Id: I827b85e33d16155fcc920d553100c9e99267dc4e