Sync/Valgrind: Add gmock printers for SyncChange, SyncData, SyncError.

chrome/browser/sync/api/sync_data.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/sync/api/sync_data.h"
 
+#include <iostream>
+
 #include "chrome/browser/sync/internal_api/base_node.h"
 #include "chrome/browser/sync/protocol/sync.pb.h"
 
 void SyncData::ImmutableSyncEntityTraits::InitializeWrapper(
     Wrapper* wrapper) {
   *wrapper = new sync_pb::SyncEntity();
 }
 
 void SyncData::ImmutableSyncEntityTraits::DestroyWrapper(
     Wrapper* wrapper) {
@@ skipping 78 matching lines @@
 }
 
 int64 SyncData::GetRemoteId() const {
   DCHECK(!IsLocal());
   return id_;
 }
 
 bool SyncData::IsLocal() const {
   return id_ == sync_api::kInvalidId;
 }
+
+std::ostream& operator<<(::std::ostream& os,
+                         const SyncData& sync_data) {
+  int64 id = (sync_data.IsLocal()) ? 0L : sync_data.GetRemoteId();
+  return os <<
+         "{" << id <<
+         ", " << sync_data.IsValid() <<
+         ", " << sync_data.GetDataType() <<
+         ", " << sync_data.GetTag() <<

[akalin, 2011/09/21 23:12:58]

print out specifics also: use EntitySpecificsToValue from
sync/protocol/proto_value_conversions.h and base/json/json_writer.h

[James Hawkins, 2011/09/22 01:15:26]

Done.

+         ", " << sync_data.GetTitle() <<

[akalin, 2011/09/21 23:12:58]

print out IsLocal(), too.  Also note that GetTag() DCHECKs for IsLocal().  If
IsLocal() returns false, print out GetRemoteId()

[James Hawkins, 2011/09/22 01:15:26]

Done.

+         "}";
+}