Which one is better should be case by case and people.

What I saw in most cases in chromium code base use 1st parameter with function body and other paras aligned with 1st one. But some exception to use 4-space indent in second line.
1. If 1st para can not kept in same line with function name
2. If (1) yes, some paras exceed 80 chars if keep aligning.

Anyway, I'll let @kenchris keep the last call.