Merge commit 'df3a0f50c3480911e366c8c0781b0463fe063e82' into gingerbread-plus-aosp * commit 'df3a0f50c3480911e366c8c0781b0463fe063e82': Improve doc.
Merge commit 'df3a0f50c3480911e366c8c0781b0463fe063e82' into gingerbread-plus-aosp * commit 'df3a0f50c3480911e366c8c0781b0463fe063e82': Improve doc.