Add lib.target to chrome-wrapper's LD_LIBRARY_PATH.
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: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@30749 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser