Fix Tests after cherry picks. [DO NOT MERGE]

1. Updated the intelliJ run configuration for the layoutlib_create tool.
2. Updated the code to search for the platform.dir.
3. Update tests to use AppTheme and Target SDK 19

Change-Id: I6f1cc6ff2a53e4474c746537029c7f89c6dd6dc1
(cherry picked from commit 8592eeafd01370d1a17e34602290becf7f611c75)
2 files changed