An implementation of chrome.socket.secure().

extensions/browser/api/socket/tcp_socket.cc

Index: extensions/browser/api/socket/tcp_socket.cc
diff --git a/extensions/browser/api/socket/tcp_socket.cc b/extensions/browser/api/socket/tcp_socket.cc
index 49f17dcf418d2324b13527353ab0d2eee2f9ec4c..826646bc10f78fb299169e558bd0535104475e92 100644
--- a/extensions/browser/api/socket/tcp_socket.cc
+++ b/extensions/browser/api/socket/tcp_socket.cc
@@ -4,6 +4,7 @@
 
 #include "extensions/browser/api/socket/tcp_socket.h"
 
+#include "base/logging.h"
 #include "extensions/browser/api/api_resource.h"
 #include "net/base/address_list.h"
 #include "net/base/ip_endpoint.h"
@@ -304,6 +305,34 @@ void TCPSocket::OnAccept(int result) {
   accept_callback_.Reset();
 }
 
+void TCPSocket::Release() {
+  // Release() is only invoked when the underlying sockets are taken (via
+  // ClientStream()) by TLSSocket. TLSSocket only supports CLIENT-mode
+  // sockets.
+  DCHECK(!server_socket_.release() && !accept_socket_.release() &&
+         socket_mode_ == CLIENT)
+      << "Called in server mode.";
+
+  // Release() doesn't disconnect the underlying sockets, but it does
+  // disconnect them from this TCPSocket.
+  is_connected_ = false;
+
+  connect_callback_.Reset();
+  read_callback_.Reset();
+  accept_callback_.Reset();
+
+  net::TCPClientSocket* client_socket = socket_.release();
+  DCHECK(client_socket) << "Called on null client socket.";
+}
+
+net::TCPClientSocket* TCPSocket::ClientStream() {
+  if (socket_mode_ != CLIENT || GetSocketType() != TYPE_TCP)
+    return NULL;
+  return socket_.get();
+}
+
+bool TCPSocket::HasPendingRead() const { return !read_callback_.is_null(); }
+
 ResumableTCPSocket::ResumableTCPSocket(const std::string& owner_extension_id)
     : TCPSocket(owner_extension_id),
       persistent_(false),