If any WebRequest listener *other* than onBeforeRedirect was used, and a channel was redirected,
the ChannelWrapper was not updated with the redirected channel. This broke most listeners for
redirected channels and specifically an extension would never see events for the new channel.
MozReview-Commit-ID: BwXToTD5LEu
This patch was autogenerated by my decomponents.py
It covers almost every file with the extension js, jsm, html, py,
xhtml, or xul.
It removes blank lines after removed lines, when the removed lines are
preceded by either blank lines or the start of a new block. The "start
of a new block" is defined fairly hackily: either the line starts with
//, ends with */, ends with {, <
