[Sync] Put everything in sync/api into csync namespace

chrome/browser/sync/profile_sync_service_preference_unittest.cc

Index: chrome/browser/sync/profile_sync_service_preference_unittest.cc
diff --git a/chrome/browser/sync/profile_sync_service_preference_unittest.cc b/chrome/browser/sync/profile_sync_service_preference_unittest.cc
index a2390ccebeb84c142bbb16c8f1a9c300babcadf7..885035bc56960d51087df1494075c5f4c174dd7d 100644
--- a/chrome/browser/sync/profile_sync_service_preference_unittest.cc
+++ b/chrome/browser/sync/profile_sync_service_preference_unittest.cc
@@ -177,7 +177,7 @@ class ProfileSyncServicePreferenceTest
   int64 WriteSyncedValue(const std::string& name,
                          const Value& value,
                          csync::WriteNode* node) {
-    SyncData sync_data;
+    csync::SyncData sync_data;
     if (!PrefModelAssociator::CreatePrefSyncData(name,
                                                  value,
                                                  &sync_data)) {
@@ -253,7 +253,7 @@ TEST_F(ProfileSyncServicePreferenceTest, CreatePrefSyncData) {
 
   const PrefService::Preference* pref =
       prefs_->FindPreference(prefs::kHomePage);
-  SyncData sync_data;
+  csync::SyncData sync_data;
   EXPECT_TRUE(PrefModelAssociator::CreatePrefSyncData(pref->name(),
       *pref->GetValue(), &sync_data));
   EXPECT_EQ(std::string(prefs::kHomePage), sync_data.GetTag());