commit ecff3f703235a2c0f54bd988aeefb1a4b906daca
author Arman Uguray <armansito@google.com> Thu May 21 13:39:18 2015 -0700
committer Arman Uguray <armansito@google.com> Tue May 26 14:56:48 2015 -0700
tree b7a9881fe49eff27fe4f463f5e4b54a4cd494c47
parent 71c4001fb85da662bbda1c543122cf5bc5c7e5bb

build: Add build arguments for libhardware and core dirs

This patch adds GN arguments to add libhardware and core library include
paths in a generic manner.

Example args.gn file:

    libhw_include_path = "../../libhardware/include"
    core_include_path = "../../core/include"

Also introduced in this CL is the "OS_GENERIC" preprocessor define, that
will allow us to conditionally compile Android-specific vs generic code
until we shed the Android-specific dependencies.

BUG=21339022

Change-Id: I42b1cc501738653a6e886a0365c9cbef2e9a525e