Add instrumented library target for glib.
Original patch by Alexander Taran (alextaran@chromium.org) reviewed at https://codereview.chromium.org/91053003/

BUG=313751
TBR=cpu@chromium.org,earthdok@chromium.org

Review URL: https://codereview.chromium.org/93963002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237721 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237721