cros: Show dircryto migration banner

chromeos/dbus/cryptohome_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chromeos/dbus/cryptohome_client.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 923 matching lines @@
     writer.AppendProtoAsArrayOfBytes(id_proto);
     writer.AppendProtoAsArrayOfBytes(auth);
 
     // The migration progress takes unpredicatable time depending on the
     // user file size and the number. Setting the time limit to infinite.
     proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
                        base::Bind(&CryptohomeClientImpl::OnVoidMethod,
                                   weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
+  void NeedsDircryptoMigration(
+      const cryptohome::Identification& cryptohome_id,
+      const BoolDBusMethodCallback& callback) override {
+    dbus::MethodCall method_call(
+        cryptohome::kCryptohomeInterface,
+        cryptohome::kCryptohomeNeedsDircryptoMigration);
+
+    cryptohome::AccountIdentifier id_proto;
+    FillIdentificationProtobuf(cryptohome_id, &id_proto);
+
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendProtoAsArrayOfBytes(id_proto);
+
+    proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+                       base::Bind(&CryptohomeClientImpl::OnBoolMethod,
+                                  weak_ptr_factory_.GetWeakPtr(), callback));
+  }
+
  protected:
   void Init(dbus::Bus* bus) override {
     proxy_ = bus->GetObjectProxy(
         cryptohome::kCryptohomeServiceName,
         dbus::ObjectPath(cryptohome::kCryptohomeServicePath));
 
     blocking_method_caller_.reset(new BlockingMethodCaller(bus, proxy_));
 
     proxy_->ConnectToSignal(cryptohome::kCryptohomeInterface,
                             cryptohome::kSignalAsyncCallStatus,
@@ skipping 325 matching lines @@
   return new CryptohomeClientImpl();
 }
 
 // static
 std::string CryptohomeClient::GetStubSanitizedUsername(
     const cryptohome::Identification& cryptohome_id) {
   return cryptohome_id.id() + kUserIdStubHashSuffix;
 }
 
 }  // namespace chromeos