The layout test media/video-seek-with-negative-playback.html timeouts on the GTK Release bot.
I have debugging the issue, but I still have no clear idea of what is happening.
I'm not able to reproduce the timeout on my laptop.
On the bot, the test was passing fine until r171023. I manually started a forced-build on that revision to double-check this: http://build.webkit.org/builders/GTK%20Linux%2064-bit%20Release%20%28Tests%29/builds/1522
After r171023 the test is always timing out on the bot. r171024 touches 2 IPC related functions on Source/WebKit2/Shared/WebProcessCreationParameters.cpp
However I tried to manually build r171023 on the bot (with a shell account) and the test still timeouts, so the issue is hard to reproduce.
I was doing some traces and it seems that it gets stuck for ~20/30 seconds waiting for dbus. So seems something IPC related.
Perhaps the problem is related to some configuration of the release bot, don't know.
I will be marking the test as flaky.