diff --git a/chromeos/dbus/BUILD.gn b/chromeos/dbus/BUILD.gn
index 76185613230121..3978a5f674ea9e 100644
--- a/chromeos/dbus/BUILD.gn
+++ b/chromeos/dbus/BUILD.gn
@@ -362,7 +362,6 @@ proto_library("concierge_proto") {
 
 proto_library("cryptohome_proto") {
   sources = [
-    "//third_party/cros_system_api/dbus/cryptohome/install_attributes.proto",
     "//third_party/cros_system_api/dbus/cryptohome/key.proto",
     "//third_party/cros_system_api/dbus/cryptohome/rpc.proto",
   ]
diff --git a/chromeos/dbus/fake_cryptohome_client.cc b/chromeos/dbus/fake_cryptohome_client.cc
index b8ab1368aad796..795006987dea4e 100644
--- a/chromeos/dbus/fake_cryptohome_client.cc
+++ b/chromeos/dbus/fake_cryptohome_client.cc
@@ -20,10 +20,10 @@
 #include "base/threading/thread_task_runner_handle.h"
 #include "chromeos/dbus/attestation/attestation.pb.h"
 #include "chromeos/dbus/constants/dbus_paths.h"
-#include "chromeos/dbus/cryptohome/install_attributes.pb.h"
 #include "chromeos/dbus/cryptohome/key.pb.h"
 #include "chromeos/dbus/cryptohome/rpc.pb.h"
 #include "chromeos/dbus/util/account_identifier_operators.h"
+#include "components/policy/proto/install_attributes.pb.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
@@ -280,10 +280,8 @@ bool FakeCryptohomeClient::InstallAttributesFinalize(bool* successful) {
                                         value.data() + value.size());
   }
 
-  // Set default version (note that version is required).
-  install_attrs_proto.set_version(install_attrs_proto.version());
-  std::string result = install_attrs_proto.SerializeAsString();
-  DCHECK(!result.empty());
+  std::string result;
+  install_attrs_proto.SerializeToString(&result);
 
   // The real implementation does a blocking wait on the dbus call; the fake
   // implementation must have this file written before returning.
diff --git a/chromeos/tpm/install_attributes.cc b/chromeos/tpm/install_attributes.cc
index 151df581f58f76..8ba4772b520469 100644
--- a/chromeos/tpm/install_attributes.cc
+++ b/chromeos/tpm/install_attributes.cc
@@ -21,10 +21,10 @@
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "chromeos/dbus/constants/dbus_paths.h"
-#include "chromeos/dbus/cryptohome/install_attributes.pb.h"
 #include "chromeos/dbus/cryptohome/rpc.pb.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/util/tpm_util.h"
+#include "components/policy/proto/install_attributes.pb.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
@@ -138,11 +138,7 @@ InstallAttributes::GetEnterpriseOwnedInstallAttributesBlobForTesting(
   attribute->set_name(InstallAttributes::kAttrEnterpriseUser);
   attribute->set_value(user_name);
 
-  // Set default version (note that version is required).
-  install_attrs_proto.set_version(install_attrs_proto.version());
-  std::string result = install_attrs_proto.SerializeAsString();
-  DCHECK(!result.empty());
-  return result;
+  return install_attrs_proto.SerializeAsString();
 }
 
 InstallAttributes::InstallAttributes(CryptohomeClient* cryptohome_client)
diff --git a/chromeos/tpm/install_attributes_unittest.cc b/chromeos/tpm/install_attributes_unittest.cc
index 6ce8c31a04f284..5002a28ad1ae7e 100644
--- a/chromeos/tpm/install_attributes_unittest.cc
+++ b/chromeos/tpm/install_attributes_unittest.cc
@@ -15,11 +15,11 @@
 #include "base/test/metrics/histogram_tester.h"
 #include "base/test/scoped_task_environment.h"
 #include "chromeos/dbus/constants/dbus_paths.h"
-#include "chromeos/dbus/cryptohome/install_attributes.pb.h"
 #include "chromeos/dbus/cryptohome/rpc.pb.h"
 #include "chromeos/dbus/cryptohome_client.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/util/tpm_util.h"
+#include "components/policy/proto/install_attributes.pb.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -288,8 +288,6 @@ TEST_F(InstallAttributesTest, Init) {
                "true");
   SetAttribute(&install_attrs_proto, InstallAttributes::kAttrEnterpriseUser,
                kTestUserDeprecated);
-  // Set default version (note that version is required).
-  install_attrs_proto.set_version(install_attrs_proto.version());
   const std::string blob(install_attrs_proto.SerializeAsString());
   ASSERT_EQ(static_cast<int>(blob.size()),
             base::WriteFile(GetTempPath(), blob.c_str(), blob.size()));
@@ -304,8 +302,6 @@ TEST_F(InstallAttributesTest, InitForConsumerKiosk) {
   cryptohome::SerializedInstallAttributes install_attrs_proto;
   SetAttribute(&install_attrs_proto,
                InstallAttributes::kAttrConsumerKioskEnabled, "true");
-  // Set default version (note that version is required).
-  install_attrs_proto.set_version(install_attrs_proto.version());
   const std::string blob(install_attrs_proto.SerializeAsString());
   ASSERT_EQ(static_cast<int>(blob.size()),
             base::WriteFile(GetTempPath(), blob.c_str(), blob.size()));
diff --git a/components/policy/proto/BUILD.gn b/components/policy/proto/BUILD.gn
index 7d6cb62f12b1fa..a7039ac9e50398 100644
--- a/components/policy/proto/BUILD.gn
+++ b/components/policy/proto/BUILD.gn
@@ -23,7 +23,10 @@ proto_library("proto_internal") {
   ]
 
   if (is_chromeos) {
-    sources += [ "chrome_device_policy.proto" ]
+    sources += [
+      "chrome_device_policy.proto",
+      "install_attributes.proto",
+    ]
   }
 
   if (!is_android && !is_ios) {
diff --git a/components/policy/proto/install_attributes.proto b/components/policy/proto/install_attributes.proto
new file mode 100644
index 00000000000000..396794ba421668
--- /dev/null
+++ b/components/policy/proto/install_attributes.proto
@@ -0,0 +1,20 @@
+// Copyright 2013 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.
+
+syntax = "proto2";
+
+option optimize_for = LITE_RUNTIME;
+
+package cryptohome;
+
+// This must match install_attributes.proto in the Chromium OS cryptohome
+// repository. Only the fields that are relevant to the browser are present
+// here.
+message SerializedInstallAttributes {
+  message Attribute {
+    required string name = 1;
+    required bytes value = 2;
+  }
+  repeated Attribute attributes = 2;
+}