Adds socket.getInfo to the socket API

chrome/browser/extensions/api/socket/socket_api.cc

Index: chrome/browser/extensions/api/socket/socket_api.cc
diff --git a/chrome/browser/extensions/api/socket/socket_api.cc b/chrome/browser/extensions/api/socket/socket_api.cc
index b9bd48f47afc791144d1b1cf651c4283b5eec70b..951f60005d772158d1fd1507a95b2453c27103ae 100644
--- a/chrome/browser/extensions/api/socket/socket_api.cc
+++ b/chrome/browser/extensions/api/socket/socket_api.cc
@@ -453,4 +453,48 @@ void SocketSetNoDelayFunction::Work() {
   SetResult(Value::CreateBooleanValue(result));
 }
 
+SocketGetInfoFunction::SocketGetInfoFunction()
+    : params_(NULL) {}
+
+SocketGetInfoFunction::~SocketGetInfoFunction() {}
+
+bool SocketGetInfoFunction::Prepare() {
+  params_ = api::socket::GetInfo::Params::Create(*args_);
+  EXTENSION_FUNCTION_VALIDATE(params_.get());
+  return true;
+}
+
+void SocketGetInfoFunction::Work() {
+  api::socket::SocketInfo info;
+  Socket* socket = manager_->Get(params_->socket_id);
+  if (socket) {
+    // This represents what we know about the socket, and does not call through
+    // to the system.
+    info.socket_type = (socket->IsTCPSocket() ? kTCPOption : kUDPOption);
+    info.connected = socket->IsConnected();
+
+    // Grab the peer address as known by the OS. This and the call below will
+    // always succeed while the socket is connected, even if the socket has
+    // been remotely closed by the peer; only reading the socket will reveal
+    // that it should be closed locally.
+    net::IPEndPoint peerAddress;
+    if (socket->GetPeerAddress(&peerAddress)) {
+      info.peer_address.reset(
+          new std::string(peerAddress.ToStringWithoutPort()));
+      info.peer_port.reset(new int(peerAddress.port()));
+    }
+
+    // Grab the local address as known by the OS.
+    net::IPEndPoint localAddress;
+    if (socket->GetLocalAddress(&localAddress)) {
+      info.local_address.reset(
+          new std::string(localAddress.ToStringWithoutPort()));
+      info.local_port.reset(new int(localAddress.port()));
+    }
+  } else {
+    error_ = kSocketNotFoundError;
+  }
+  SetResult(info.ToValue().release());
+}
+
 }  // namespace extensions