Teach gtest how to print QuicConsumedData and QuicEncryptedPacket.

net/quic/quic_protocol.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_QUIC_PROTOCOL_H_
 #define NET_QUIC_QUIC_PROTOCOL_H_
 
 #include <stddef.h>
 #include <limits>
 #include <map>
@@ skipping 461 matching lines @@
 };
 
 class NET_EXPORT_PRIVATE QuicEncryptedPacket : public QuicData {
  public:
   QuicEncryptedPacket(const char* buffer, size_t length)
       : QuicData(buffer, length) { }
 
   QuicEncryptedPacket(char* buffer, size_t length, bool owns_buffer)
       : QuicData(buffer, length, owns_buffer) { }
 
+  // By default, gtest prints the raw bytes of an object. The bool data
+  // member (in the base class QuicData) causes this object to have padding
+  // bytes, which causes the default gtest object printer to read
+  // uninitialize memory. So we need to teach gtest how to print this object.
+  NET_EXPORT_PRIVATE friend std::ostream& operator<<(
+      std::ostream& os, const QuicEncryptedPacket& s);
+
   base::StringPiece AssociatedData() const {
     return base::StringPiece(data() + kStartOfHashData, kStartOfEncryptedData);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(QuicEncryptedPacket);
 };
 
 // A struct for functions which consume data payloads and fins.
 // The first member of the pair indicates bytes consumed.
 // The second member of the pair indicates if an incoming fin was consumed.
 struct QuicConsumedData {
   QuicConsumedData(size_t bytes_consumed, bool fin_consumed)
       : bytes_consumed(bytes_consumed),
         fin_consumed(fin_consumed) {
   }
+
+  // By default, gtest prints the raw bytes of an object. The bool data
+  // member causes this object to have padding bytes, which causes the
+  // default gtest object printer to read uninitialize memory. So we need
+  // to teach gtest how to print this object.
+  NET_EXPORT_PRIVATE friend std::ostream& operator<<(
+      std::ostream& os, const QuicConsumedData& s);
+
   size_t bytes_consumed;
   bool fin_consumed;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_