DRM relies on handing the ciphertext, a decryption program, and the key to the opponent, and then telling them not to use it except when they are allowed to use it.
If your browser is in charge of running the storage of the ciphertext and the decryption, it is much easier to debug it and apply a patch that will store the plaintext than if you have to do this all in an Android emulator as well.
But either way: DRM doesn't work for long.
In the meantime, Netflix is providing enough value for me that I happily pay their monthly fee and don't bother looking for ways to break their DRM.
