Fix treestyletab in multiprocess (e10s) firefox

[Nephyrin]

With these changes the addon appears to mostly work well in multiprocess mode. The changes are:

• Fix onBeforeOpenLinkWithParams hook in windowHelper to recognize the newer code from bug 1050447, so it works on nightly again
• Workaround a contentWindowAsCPOW issue, see mozilla Bug 1042680 comment 15. This may be a firefox bug, but is easy to work around on the addon side for now.
• Change onBeforeOpenLinkWithParams to onBeforeOpenLinkWithTab and just pass the current tab from the link hook. This is because params.linkNode is not set in multiprocess mode, and accessing content via CPOWs is unnecessary here.

[wsmwk]

Is there an xpi of this around? I thought there used to be a DL somewhere at https://github.com/piroor/treestyletab that included developement patches but I'm not finding it

[Nephyrin]

@wsmwk This hasn't been merged or reviewed by the addon author yet, so it wouldn't be in development builds either way. I have a copy of the build I'm using for e10s testing here, but it will not auto-update, so you'll need to take care to switch back to proper builds once they support e10s.

[wsmwk]

very timely - I was just about to restart Firefox for another issue.

For the few minutes I'm using it working, and stable. Thanks.

[piroor]

I apologize for this large delay. I've confirmed this works well. Thanks a lot!!

[al2000]

Middle-click still doesn't open as child tab but as top level tab
FF v.33.0
TST v.0.14.2014051101

[piroor]

Development build is available: http://piro.sakura.ne.jp/xul/xpi/nightly/

[ShardPhoenix]

Thanks, this also fixed this issue for me in FF 34.

[kunambi]

This also fixes the issue for Firefox Developer Edition

[calh]

👍 Thanks @piroor for linking the nightly builds here. I just upgraded to FF 34, and my Tree Style Tabs (stable) started seeing the middle click top tree issue. This bugfix seems to work great!