Add lib.target to chrome-wrapper's LD_LIBRARY_PATH.

Needed since r732 of gyp.

TEST=Shared build on linux finds libs now without needing to
manually adjust LD_LIBRARY_PATH.

Review URL: http://codereview.chromium.org/340060

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30749 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed