ntp: change nav dot text color, again
ntp: change nav dot text color, again

this is a revert of r105014. WebKit keeps flip flopping on us with regards to what opacity means. See r105014 change description for more details.

BUG=107382
TEST=manual


Review URL: http://codereview.chromium.org/8969036

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@114878 0039d316-1c4b-4281-b951-d872f2087c98

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