Pepper: Re-enable many FileRef tests.

FileRef NaCl tests were recently disabled because they're flaky (timing out).
ReadDirectoryEntries was recently added and is probably the main contributing
factor. This change gets us back where we started while I work on reducing
runtime for the FileRef tests.

BUG=238376

Review URL: https://chromiumcodereview.appspot.com/15019002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@198714 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed