Instrumented libraries: disallow loadable modules for gdk-pixbuf.

This eliminates a warning in the best case, a startup crash in the worst case.

BUG=456636
TBR=glider@chromim.org
NOTRY=true

Review URL: https://codereview.chromium.org/911963002

Cr-Original-Commit-Position: refs/heads/master@{#315604}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: a4260245c8f2563f30d4cef64706e0a2ec11add2
1 file changed