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

chrome/browser/sync/api/sync_data.cc

Index: chrome/browser/sync/api/sync_data.cc
diff --git a/chrome/browser/sync/api/sync_data.cc b/chrome/browser/sync/api/sync_data.cc
index 1c2d4967423cc72cb69288fdb3a7fe96d807d96e..cc7ad6be1be33ad583fa6f7be3a6e6873b09930d 100644
--- a/chrome/browser/sync/api/sync_data.cc
+++ b/chrome/browser/sync/api/sync_data.cc
@@ -4,6 +4,8 @@
 
 #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"
 
@@ -102,3 +104,15 @@ int64 SyncData::GetRemoteId() const {
 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.

+         "}";
+}