Bug 827050 - Clear cookies and stored data in the browser clears remember my choice permissions for PROMPT_ACTION WebAPIs, r=mounir

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rename : dom/tests/mochitest/localstorage/frame_clear_browser_data.html => extensions/cookie/test/frame_clear_browser_data.html
rename : extensions/cookie/test/test_app_uninstall_permissions.html => extensions/cookie/test/test_app_cleardata_permissions.html