Cleanup: remove BlockedWriterInterface from QuicPacketWriter.

net/tools/quic/end_to_end_test.cc

Index: net/tools/quic/end_to_end_test.cc
diff --git a/net/tools/quic/end_to_end_test.cc b/net/tools/quic/end_to_end_test.cc
index 3333e89079ee647f5e86d4944dc8c79f4e9221f3..86cd8183a097a182c9ae07040bfe58ff22ef8388 100644
--- a/net/tools/quic/end_to_end_test.cc
+++ b/net/tools/quic/end_to_end_test.cc
@@ -838,11 +838,10 @@ class WrongAddressWriter : public QuicPacketWriterWrapper {
       const char* buffer,
       size_t buf_len,
       const IPAddressNumber& real_self_address,
-      const IPEndPoint& peer_address,
-      QuicBlockedWriterInterface* blocked_writer) OVERRIDE {
+      const IPEndPoint& peer_address) OVERRIDE {
     // Use wrong address!
     return QuicPacketWriterWrapper::WritePacket(
-        buffer, buf_len, self_address_.address(), peer_address, blocked_writer);
+        buffer, buf_len, self_address_.address(), peer_address);
   }
 
   virtual bool IsWriteBlockedDataBuffered() const OVERRIDE {