Android has made sure google will survive. If iOS and windows phone were the two dominant platforms, they could change the default search engine at any time, and give Google a huge shock. In the post PC world, without Android google would have been at the mercy of the mobile vendors. A lot of search income should be direct result of android, which the above figure doesn't acknowledge.
What does it say about Android that even Eric Schmidt refused to use one years after it was introduced?
https://www.cnet.com/news/googles-eric-schmidt-why-i-love-my...
Can you imagine the CEO of Apple telling reporters how much he loves his Android phone?
The problem is that the VPs were former engineers.
I mean, "only" is relative here.
Back then they didn't sell hardware which is where most iPhone revenue comes from.
And before someone mentions Android, according to information that came out during the Oracle trial (that Google tried to keep redacted), Android has only made Google $22 Billion in profit during its entire existence up until then.