Squashed commit of the following:

commit b6cf47306b642f7cf7e1b55cce448e0deff38f36
Author: Jianhong Jiang <jianhong@google.com>
Date:   Mon Apr 13 11:07:01 2009 -0700

    Change tabs into 4 spaces.

commit 93c5890dbcc68e37aa0ef039b4a203acddca8968
Author: Jianhong Jiang <jianhong@google.com>
Date:   Fri Apr 10 14:15:23 2009 -0700

    OpenCore 2.02 related changes.