No, no, they ported Android to glibc the GNU libc implementation (from bionic, the APSLv2 licensed Android libc implementation) in order to run Chrome, which at the time depended on some glibc/posix things that weren't in bionic (Chrome on GTV also links against glib and gtk2, but that's because it does on regular linux too -- Chrome uses the glib runloop already fwiw and v8 has no runloop).

I think GNOME3 has spidermonkey with GObject bindings, and I'm sure I've seen JavaScriptCore GObject bindings too...