Enabling IPv6 socket recv timestamp test, and making less flaky.

webrtc/base/socket.h

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 133 matching lines @@
   virtual SocketAddress GetLocalAddress() const = 0;
 
   // Returns the address to which the socket is connected.  If the socket is
   // not connected, then the any-address is returned.
   virtual SocketAddress GetRemoteAddress() const = 0;
 
   virtual int Bind(const SocketAddress& addr) = 0;
   virtual int Connect(const SocketAddress& addr) = 0;
   virtual int Send(const void *pv, size_t cb) = 0;
   virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr) = 0;
+  // |timestamp| is in units of microseconds.
   virtual int Recv(void* pv, size_t cb, int64_t* timestamp) = 0;
   virtual int RecvFrom(void* pv,
                        size_t cb,
                        SocketAddress* paddr,
                        int64_t* timestamp) = 0;
   virtual int Listen(int backlog) = 0;
   virtual Socket *Accept(SocketAddress *paddr) = 0;
   virtual int Close() = 0;
   virtual int GetError() const = 0;
   virtual void SetError(int error) = 0;
@@ skipping 28 matching lines @@
  protected:
   Socket() {}
 
  private:
   RTC_DISALLOW_COPY_AND_ASSIGN(Socket);
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_SOCKET_H__