Change the signin button to a submit button, so that when you fill in the username/password, then press enter, it'll have the same effect as if you clicked "sign in."
Change the signin button to a submit button, so that when you fill in the username/password, then press enter, it'll have the same effect as if you clicked "sign in."

BUG:43224
TEST: Wrench->set up sync. Enter a valid username and password.  Press enter.  It should sign you in and start syncing.

Review URL: http://codereview.chromium.org/2687001

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@48979 0039d316-1c4b-4281-b951-d872f2087c98

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