Adds wjia@ to meda/base/android/OWNERS

BUG=

Review URL: https://codereview.chromium.org/170633002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251842 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251842