Add net to pairing DEPS

BUG=None
R=wtc@chromium.org

Review URL: https://codereview.chromium.org/429453007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287794 0039d316-1c4b-4281-b951-d872f2087c98

components/pairing/DEPS

 include_rules = [
   "+device/bluetooth",
+  "+net",  # For IOBuffer
 ]