GitLab

I missed to apply ChildProcessSecurityPolicy to receive side. Blink
needs additional sysex filter per MIDIAccess object.

BUG=163795
TEST=none

Review URL: https://chromiumcodereview.appspot.com/23983004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221662 0039d316-1c4b-4281-b951-d872f2087c98