The two companies are not the same; their dominant positions are in different markets which means the anti-trust implications of them extending into a specific market have to be judged separately.
As an extreme example, Oracle had a dominant position in the enterprise database market in the late '90s, but it wouldn't have been an abuse of that position if they'd integrated a web browser into Oracle 8.
As an extreme example, Oracle had a dominant position in the enterprise database market in the late '90s, but it wouldn't have been an abuse of that position if they'd integrated a web browser into Oracle 8.