Add non-blocking sync code to ProfileSyncService

chrome/browser/sync/glue/sync_backend_host_mock.h

Index: chrome/browser/sync/glue/sync_backend_host_mock.h
diff --git a/chrome/browser/sync/glue/sync_backend_host_mock.h b/chrome/browser/sync/glue/sync_backend_host_mock.h
index b75a0879b69849b1ea4cdc44d52ac07ab9a87b1b..fa8537bd8c18b5dab3d3e79bfe293be8e65f49cd 100644
--- a/chrome/browser/sync/glue/sync_backend_host_mock.h
+++ b/chrome/browser/sync/glue/sync_backend_host_mock.h
@@ -56,6 +56,9 @@ class SyncBackendHostMock : public SyncBackendHost {
 
   virtual void UnregisterInvalidationIds() OVERRIDE;
 
+  virtual void SetPreferredNonBlockingTypes(
+      syncer::ModelTypeSet types) OVERRIDE;
+
   virtual void ConfigureDataTypes(
       syncer::ConfigureReason reason,
       const DataTypeConfigStateMap& config_state_map,
@@ -72,6 +75,8 @@ class SyncBackendHostMock : public SyncBackendHost {
 
   virtual syncer::UserShare* GetUserShare() const OVERRIDE;
 
+  virtual syncer::SyncCoreProxy GetSyncCoreProxy() OVERRIDE;
+
   virtual Status GetDetailedStatus() OVERRIDE;
 
   virtual syncer::sessions::SyncSessionSnapshot