Merge mozilla-central to tracemonkey.

browser/base/content/aboutRobots-icon-rtl.png

browser/base/content/sanitize.xul

...onents/privatebrowsing/content/aboutPrivateBrowsing.xhtml

...ts/privatebrowsing/test/unit/test_privatebrowsing_exit.js

browser/components/sessionstore/src/nsSessionStore.js

.../components/sessionstore/test/browser/browser_248970_a.js

browser/fuel/test/browser_Application.js

browser/fuel/test/browser_Browser.js

browser/themes/gnomestripe/browser/Search-glass-rtl.png

browser/themes/gnomestripe/browser/Toolbar-small.png

browser/themes/gnomestripe/browser/Toolbar.png

browser/themes/gnomestripe/browser/identity.png

browser/themes/gnomestripe/browser/pageInfo.png

browser/themes/gnomestripe/browser/preferences/Options.png

browser/themes/gnomestripe/browser/preview.png

browser/themes/gnomestripe/browser/tabbrowser/newtab.png

browser/themes/pinstripe/browser/tabbrowser/newtab.png

browser/themes/winstripe/browser/tabbrowser/newtab-aero.png

browser/themes/winstripe/browser/tabbrowser/newtab.png

content/xbl/src/nsXBLProtoImpl.cpp