New file for simpler updating of Android defines.

When building Skia for the Android framework, we will now read a
file which only includes defines. This will make it easier for
people deprecating APIs to add the guard to Android.

R=reed@google.com, djsollen@google.com, bungeman@google.com

Author: scroggo@google.com

Review URL: https://codereview.chromium.org/305193002

git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@15013 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed