Merge changes from topic \'target-sdk-0-fix\'
am: 493576b

* commit '493576bc5db94068b5a767021a4a5c8b6963c836':
  Create linker namespace for the system server classloader
  Extract pathclassloader initialization to a separate class

Change-Id: Ifbebd0a98c3d80620b53bf7ebef76222e57ca923