[i18n fixlet] Change Sign In [To] -> Sign in [to] and Signed In As -> Signed in as.
[i18n fixlet] Change Sign In [To] -> Sign in [to] and Signed In As -> Signed in as.

R=estade@chromium.org
BUG=110037
TEST=See "Sign in [to]" rather than "Sign In [To]" as well as "Signed in as" rather than "Signed In As".

Review URL: http://codereview.chromium.org/9188043

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@117536 0039d316-1c4b-4281-b951-d872f2087c98

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