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This also uses the new blue button style for
the app launcher signin button.

Binaries were landed in: https://codereview.chromium.org/15848008/

BUG=159733

Review URL: https://chromiumcodereview.appspot.com/14631022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203089 0039d316-1c4b-4281-b951-d872f2087c98