Bug 1081343 - Create a pref to control Polaris. r=gavin

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 browser/app/profile/firefox.js                   |  3 ++
 browser/components/nsBrowserGlue.js              | 14 ++++++
 browser/components/test/browser.ini              |  2 +
 browser/components/test/browser_polaris_prefs.js | 57 ++++++++++++++++++++++++
 4 files changed, 76 insertions(+)
 create mode 100644 browser/components/test/browser_polaris_prefs.js