Revert 252408 "Adding talk_base::PacketOptions to P2P IPC Send m..."

This made the ASAN bots fail:

http://build.chromium.org/p/chromium.lkgr/builders/ASAN%20Release/builds/7563

> Adding talk_base::PacketOptions to P2P IPC Send message.
> 
> Libjingle added a structure which will carry additional
> meta information about the packet in Send API. This includes
> DSCP code for the packet and packet authentication information.
> This information must be used before the packet is sent over
> the network. This requires options must be sent to the browser process.
> 
> R=sergeyu@chromium.org
> TBR=cevans@chromium.org,avi@chromium.org
> 
> BUG=
> 
> Review URL: https://codereview.chromium.org/170193002

TBR=mallinath@chromium.org

Review URL: https://codereview.chromium.org/177603002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252900 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252900