ChromeOS cryptohome should be able to use gaia id as user identifier.

chromeos/cryptohome/homedir_methods.cc

Index: chromeos/cryptohome/homedir_methods.cc
diff --git a/chromeos/cryptohome/homedir_methods.cc b/chromeos/cryptohome/homedir_methods.cc
index 8413c72f239dbdc35a33339c00e342cbd733b279..81bf15349dc9dcbf8269be9aba8cd971b053b34f 100644
--- a/chromeos/cryptohome/homedir_methods.cc
+++ b/chromeos/cryptohome/homedir_methods.cc
@@ -95,12 +95,6 @@ void FillKeyProtobuf(const KeyDefinition& key_def, Key* key) {
   }
 }
 
-// Fill identification protobuffer.
-void FillIdentificationProtobuf(const Identification& id,
-                                cryptohome::AccountIdentifier* id_proto) {
-  id_proto->set_email(id.user_id);
-}
-
 // Fill authorization protobuffer.
 void FillAuthorizationProtobuf(const Authorization& auth,
                                cryptohome::AuthorizationRequest* auth_proto) {
@@ -183,50 +177,38 @@ class HomedirMethodsImpl : public HomedirMethods {
   void GetKeyDataEx(const Identification& id,
                     const std::string& label,
                     const GetKeyDataCallback& callback) override {
-    cryptohome::AccountIdentifier id_proto;
     cryptohome::AuthorizationRequest kEmptyAuthProto;
     cryptohome::GetKeyDataRequest request;
 
-    FillIdentificationProtobuf(id, &id_proto);
     request.mutable_key()->mutable_data()->set_label(label);
 
     DBusThreadManager::Get()->GetCryptohomeClient()->GetKeyDataEx(
-        id_proto,
-        kEmptyAuthProto,
-        request,
+        id, kEmptyAuthProto, request,
         base::Bind(&HomedirMethodsImpl::OnGetKeyDataExCallback,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   callback));
+                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
   void CheckKeyEx(const Identification& id,
                   const Authorization& auth,
                   const Callback& callback) override {
-    cryptohome::AccountIdentifier id_proto;
     cryptohome::AuthorizationRequest auth_proto;
     cryptohome::CheckKeyRequest request;
 
-    FillIdentificationProtobuf(id, &id_proto);
     FillAuthorizationProtobuf(auth, &auth_proto);
 
     DBusThreadManager::Get()->GetCryptohomeClient()->CheckKeyEx(
-        id_proto,
-        auth_proto,
-        request,
+        id, auth_proto, request,
         base::Bind(&HomedirMethodsImpl::OnBaseReplyCallback,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   callback));
+                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
   void MountEx(const Identification& id,
                const Authorization& auth,
                const MountParameters& request,
                const MountCallback& callback) override {
-    cryptohome::AccountIdentifier id_proto;
     cryptohome::AuthorizationRequest auth_proto;
     cryptohome::MountRequest request_proto;
 
-    FillIdentificationProtobuf(id, &id_proto);
     FillAuthorizationProtobuf(auth, &auth_proto);
 
     if (request.ephemeral)
@@ -239,12 +221,9 @@ class HomedirMethodsImpl : public HomedirMethods {
     }
 
     DBusThreadManager::Get()->GetCryptohomeClient()->MountEx(
-        id_proto,
-        auth_proto,
-        request_proto,
+        id, auth_proto, request_proto,
         base::Bind(&HomedirMethodsImpl::OnMountExCallback,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   callback));
+                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
   void AddKeyEx(const Identification& id,
@@ -252,43 +231,33 @@ class HomedirMethodsImpl : public HomedirMethods {
                 const KeyDefinition& new_key,
                 bool clobber_if_exists,
                 const Callback& callback) override {
-    cryptohome::AccountIdentifier id_proto;
     cryptohome::AuthorizationRequest auth_proto;
     cryptohome::AddKeyRequest request;
 
-    FillIdentificationProtobuf(id, &id_proto);
     FillAuthorizationProtobuf(auth, &auth_proto);
     FillKeyProtobuf(new_key, request.mutable_key());
     request.set_clobber_if_exists(clobber_if_exists);
 
     DBusThreadManager::Get()->GetCryptohomeClient()->AddKeyEx(
-        id_proto,
-        auth_proto,
-        request,
+        id, auth_proto, request,
         base::Bind(&HomedirMethodsImpl::OnBaseReplyCallback,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   callback));
+                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
   void RemoveKeyEx(const Identification& id,
                    const Authorization& auth,
                    const std::string& label,
                    const Callback& callback) override {
-    cryptohome::AccountIdentifier id_proto;
     cryptohome::AuthorizationRequest auth_proto;
     cryptohome::RemoveKeyRequest request;
 
-    FillIdentificationProtobuf(id, &id_proto);
     FillAuthorizationProtobuf(auth, &auth_proto);
     request.mutable_key()->mutable_data()->set_label(label);
 
     DBusThreadManager::Get()->GetCryptohomeClient()->RemoveKeyEx(
-        id_proto,
-        auth_proto,
-        request,
+        id, auth_proto, request,
         base::Bind(&HomedirMethodsImpl::OnBaseReplyCallback,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   callback));
+                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
   void UpdateKeyEx(const Identification& id,
@@ -296,22 +265,17 @@ class HomedirMethodsImpl : public HomedirMethods {
                    const KeyDefinition& new_key,
                    const std::string& signature,
                    const Callback& callback) override {
-    cryptohome::AccountIdentifier id_proto;
     cryptohome::AuthorizationRequest auth_proto;
     cryptohome::UpdateKeyRequest pb_update_key;
 
-    FillIdentificationProtobuf(id, &id_proto);
     FillAuthorizationProtobuf(auth, &auth_proto);
     FillKeyProtobuf(new_key, pb_update_key.mutable_changes());
     pb_update_key.set_authorization_signature(signature);
 
     DBusThreadManager::Get()->GetCryptohomeClient()->UpdateKeyEx(
-        id_proto,
-        auth_proto,
-        pb_update_key,
+        id, auth_proto, pb_update_key,
         base::Bind(&HomedirMethodsImpl::OnBaseReplyCallback,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   callback));
+                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
  private: