The thing about open source is that the way it is licensed means that anyone who has acquired the license before it is sold (such as Google's Android) can redistribute it as long as it follows the license requirements. As such, ANYONE can still use the Google's version of the three dots or if anyone had acquired a license to the original before it was no longer offered (pre 2012), can also relicense the work. Can any of the other share symbols be freely used?