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After enabling context menu to translate unknown language, Chrome needs
to modify infobar UX for Chrome Translate.

This change fixes Win UI.

BUG=172593

Review URL: https://chromiumcodereview.appspot.com/15376008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202398 0039d316-1c4b-4281-b951-d872f2087c98