Make PPAPI*NaCl* tests pass in the disable_nacl=1 builds

R=raymes@chromium.org, bbudge, raymes
BUG=327351

Review URL: https://codereview.chromium.org/150663007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252194 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252194