tree 24268cde0a4afd99c6500691f949687c65ce5985
parent 0793e3dd07b8ecb5bd0a0e91740f68f42f4f7e60
author Tom Cherry <tomcherry@google.com> 1510178460 -0800
committer Tom Cherry <tomcherry@google.com> 1510678252 -0800

Split system_properties.cpp into its component pieces

system_properties.cpp is a little bit unmanageable in its current
form, and is overdue for a refactoring into more clearly defined
components.

Of particular interest, is creating of a Contexts interface that
handles mapping of system property name -> SEContext and its
associated prop_area, and creating two classes that implement the
current and legacy functionality.  This is needed as there will likely
be a third even newer way to do this mapping.

Bug: 36001741
Test: boot bullhead, system property unit tests
Change-Id: Ie75ec6fea1a95f90813918f54669d533e51327c6