Linux: work around broken dlsym's.

It appears that Nvidia's libGL.so is overriding dlopen/dlsym with
versions that don't fully function. So far, all the users reporting
this have been running Gentoo, but it might just be that they have
up-to-date drivers. The report[1] suggests that all drivers >= 180
have this issue.

[1] http://www.nvnews.net/vbulletin/showthread.php?t=132259

BUG=16800
http://codereview.chromium.org/201055


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25671 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed