Moral posturing sure is fun, but we'll see what happens once Chrome becomes the only browser that you can use to log in to your bank. Mozilla made lots of noise about EME, but eventually fell in line – and that was at a time when Firefox had a market share it can only dream about today.
The so-called "independent" browser makers will scream and shout with indignation, then try some legal and political action (which will fail), then try to find a compromise (which they won't get), then finally implement whatever Chrome implements, while explaining to their users that this was really always about choice and adding this feature gives the user that choice. And then they will move on to their next battle, which they will lose just like they lost all the other battles they fought over the past 10 years or so.
The so-called "independent" browser makers will scream and shout with indignation, then try some legal and political action (which will fail), then try to find a compromise (which they won't get), then finally implement whatever Chrome implements, while explaining to their users that this was really always about choice and adding this feature gives the user that choice. And then they will move on to their next battle, which they will lose just like they lost all the other battles they fought over the past 10 years or so.