Enable goma for instrumented libraries.

BUG=313751
R=glider@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/169523008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251680 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251680