Most of the improvements in Chrome were wholly done at Google. V8 was done from scratch at Google, as well as the security system, and Google contributed more to WebKit over the last few years than Apple (just go look at the commit graphs). The majority of Android/Dalvik was done at Google after Danger was acquired AFAIK. Google didn't acquire Android ready made.
These days, most software isn't developed in a vacuum. WebKit was a fork of KHTML. Does Apple get no credit for the changes made to it?
Google Maps and Google Earth were acquisitions as well, but the state of those products when they were acquired compared to where they are not is completely different.
These days, most software isn't developed in a vacuum. WebKit was a fork of KHTML. Does Apple get no credit for the changes made to it?
Google Maps and Google Earth were acquisitions as well, but the state of those products when they were acquired compared to where they are not is completely different.