Add non-blocking sync code to ProfileSyncService

chrome/browser/sync/glue/sync_backend_host_mock.cc

Index: chrome/browser/sync/glue/sync_backend_host_mock.cc
diff --git a/chrome/browser/sync/glue/sync_backend_host_mock.cc b/chrome/browser/sync/glue/sync_backend_host_mock.cc
index f7629b22227d2cfd5da691d452eec7d0b9d19171..31d94e570cdf32dd5a75a3d38675c8fa6f154202 100644
--- a/chrome/browser/sync/glue/sync_backend_host_mock.cc
+++ b/chrome/browser/sync/glue/sync_backend_host_mock.cc
@@ -51,6 +51,9 @@ scoped_ptr<base::Thread> SyncBackendHostMock::Shutdown(ShutdownOption option) {
 
 void SyncBackendHostMock::UnregisterInvalidationIds() {}
 
+void SyncBackendHostMock::SetPreferredNonBlockingTypes(
+    syncer::ModelTypeSet types) {}
+
 void SyncBackendHostMock::ConfigureDataTypes(
     syncer::ConfigureReason reason,
     const DataTypeConfigStateMap& config_state_map,
@@ -69,6 +72,10 @@ syncer::UserShare* SyncBackendHostMock::GetUserShare() const {
   return NULL;
 }
 
+syncer::SyncCoreProxy SyncBackendHostMock::GetSyncCoreProxy() {
+  return syncer::SyncCoreProxy::GetInvalidSyncCoreProxyForTest();
+}
+
 SyncBackendHost::Status SyncBackendHostMock::GetDetailedStatus() {
   return SyncBackendHost::Status();
 }