Support socket endpoint permissions for AppsV2 Socket API.

chrome/browser/extensions/api/socket/socket.h

Index: chrome/browser/extensions/api/socket/socket.h
diff --git a/chrome/browser/extensions/api/socket/socket.h b/chrome/browser/extensions/api/socket/socket.h
index 663a944e3636d2821e675536a7dfea97be38808c..751a5064e36b9d4ec1ccebb1939e37faabb31592 100644
--- a/chrome/browser/extensions/api/socket/socket.h
+++ b/chrome/browser/extensions/api/socket/socket.h
@@ -34,6 +34,12 @@ typedef base::Callback<
 // we need to manage it in the context of an extension.
 class Socket : public ApiResource {
  public:
+  enum SocketType {
+    TYPE_NONE = 0,
+    TYPE_TCP,
+    TYPE_UDP,
+  };
+
   virtual ~Socket();
   virtual void Connect(const std::string& address,
                        int port,
@@ -63,6 +69,8 @@ class Socket : public ApiResource {
   virtual bool SetKeepAlive(bool enable, int delay);
   virtual bool SetNoDelay(bool no_delay);
 
+  virtual SocketType socket_type() const = 0;
+
   static bool StringAndPortToAddressList(const std::string& ip_address_str,
                                          int port,
                                          net::AddressList* address_list);