Simplify recent vault open flow and Android local sync

appstate/state.go

@@ -61,6 +61,7 @@ type SynchronizableSession interface {
 type AdvancedSynchronizableSession interface {
 	CurrentSession
 	SynchronizeFromLocal(string) error
+	SynchronizeFromLocalBytes(string, []byte) error
 	SynchronizeToLocal(string) error
 	SynchronizeFromRemote(webdav.Client, string) error
 	SynchronizeToRemote(webdav.Client, string) error
@@ -722,6 +723,18 @@ func (s *State) SynchronizeFromLocal(path string) error {
 	return nil
 }
 
+func (s *State) SynchronizeFromLocalBytes(name string, content []byte) error {
+	session, ok := s.Session.(AdvancedSynchronizableSession)
+	if !ok {
+		return fmt.Errorf("session is not advanced-synchronizable")
+	}
+	if err := session.SynchronizeFromLocalBytes(name, content); err != nil {
+		return err
+	}
+	s.Dirty = false
+	return nil
+}
+
 func (s *State) SynchronizeToLocal(path string) error {
 	session, ok := s.Session.(AdvancedSynchronizableSession)
 	if !ok {

appstate/state_test.go

@@ -1584,6 +1584,26 @@ func (s *lifecycleStubSession) OpenRemote(_ webdav.Client, path string, _ vault.
 	return nil
 }
 
+func (s *lifecycleStubSession) SynchronizeFromLocal(string) error {
+	return nil
+}
+
+func (s *lifecycleStubSession) SynchronizeFromLocalBytes(string, []byte) error {
+	return nil
+}
+
+func (s *lifecycleStubSession) SynchronizeToLocal(string) error {
+	return nil
+}
+
+func (s *lifecycleStubSession) SynchronizeFromRemote(webdav.Client, string) error {
+	return nil
+}
+
+func (s *lifecycleStubSession) SynchronizeToRemote(webdav.Client, string) error {
+	return nil
+}
+
 func (s *lifecycleStubSession) ChangeMasterKey(key vault.MasterKey) error {
 	s.changedKey = key
 	return nil