Bug 875252 - Make type=file click() to work (again) even when the element isn't in the DOM. r=jst, a=akeybl
Bug 878790 - Undo backout of 821877. a=lsblakk

Bug 821877 - Log CSP errors to Web Console. r=bz
* * *
Browser Mochitest for CSP error logging to Web Console
Also fixes another CSP brower chrome test that was broken because it uses the
old CSP headers and assumed that only one warning would be logged to the Web
Console.
* * *
Bug 863878 - The CSP logging from bug 821877 should go to the new Security Pane in the Web Console