Adding sievers@/epenner@ for Java wrappers.

BUG=

Review URL: https://codereview.chromium.org/192433004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256110 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256110