[automerger skipped] add java_api_finder plugin to mainline module DocumentsUI...

[automerger skipped] add java_api_finder plugin to mainline module DocumentsUI to generate java APIs used by DocumentsUI. am: 5d29a018 am: e010a371 am: ace565ed -s ours
am: 0e90bf36 -s ours
am skip reason: change_id I44f2e6657a0e036267ec6563891a2aa95f4cf0f9 with SHA1 9afb4f9a is in history

Change-Id: Iac22a9513f30d15cd3917e4ab16e6f4d0f4bd9e4