Flipped default preferences value of kLabsTalkEnabled from 0 to 1.
Flipped default preferences value of kLabsTalkEnabled from 0 to 1.

This will slowly auto-opt-in people as their machines are wiped and/or preferences are reset.

BUG=none
TEST=install fresh copy of Chrome OS, Talk labs should be enabled by default

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@61436 0039d316-1c4b-4281-b951-d872f2087c98

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