Anything with Chrome gets a "half truth" from me. Chrome is based on WebKit, and as such had a lot of stuff that was copied from Apple. I would say collaborated on, but Google put an end to that, so I'll use the word copied, even though it was a legally allowed copy.
"Strongtalk assembler, the basis of the files assembler-arm-inl.h,
assembler-arm.cc, assembler-arm.h, assembler-ia32-inl.h,
assembler-ia32.cc, assembler-ia32.h, assembler-x64-inl.h,
assembler-x64.cc, assembler-x64.h, assembler-mips-inl.h,
assembler-mips.cc, assembler-mips.h, assembler.cc and assembler.h.
This code is copyrighted by Sun Microsystems Inc. and released
under a 3-clause BSD license."
They didn't even write the assembler, it's Suns.
So their contribution to V8 was to bring a lot of things together, but it wouldn't have been possible with, again, outside companies and acquisitions.
I don't have much sympathy for Google in the patents arms race. Google was aware what the rules of the game were, they were aware Apple had patented the wazoo out of the iPhone ("And BOY have we patented it!" - Steve Jobs, iPhone Introduction), and yet they copied anyway. You can complain about the rules, but Google can't say they were ignorant about the rules, and boy, these patents were unexpected. They very directly released something in conflict of patents, that's on them. I don't have much sympathy for companies that go out of their way to incur legal wraith and then complain they get sued. There is no "not playing the patent game." That's like playing soccer but saying you're "not playing the no hands on the ball game." It is what is it. Ignorance isn't a legal defense, nor is it a sound corporate strategy.