Add pango-1.0 to instrumented libraries.

BUG=313751
R=glider@chromium.org

Review URL: https://codereview.chromium.org/159143002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@250376 0039d316-1c4b-4281-b951-d872f2087c98