Fix crash during sync load of the signin profile

chrome/browser/policy/schema_registry_service_factory.cc

Index: chrome/browser/policy/schema_registry_service_factory.cc
diff --git a/chrome/browser/policy/schema_registry_service_factory.cc b/chrome/browser/policy/schema_registry_service_factory.cc
index 6c9fd50b43cc265bcabeb970a71404ad8108e030..a2eef5a3a9f7cd3af8b08366cf4c26b81d134781 100644
--- a/chrome/browser/policy/schema_registry_service_factory.cc
+++ b/chrome/browser/policy/schema_registry_service_factory.cc
@@ -123,6 +123,23 @@ SchemaRegistryServiceFactory::CreateForContextInternal(
   if (!registry)
     registry.reset(new SchemaRegistry);
 
+#if defined(OS_CHROMEOS)
+  Profile* const profile = Profile::FromBrowserContext(context);
+  if (chromeos::ProfileHelper::IsSigninProfile(profile)) {
+    // Pass the SchemaRegistry of the signin profile to device cloud policy
+    // manager, for being used for fetching the component policies.
+    policy::DeviceCloudPolicyManagerChromeOS* device_cloud_policy_manager =

[bartfab (slow), 2017/03/03 17:31:28]

Nit: #include
"chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h

[emaxx, 2017/03/03 17:42:09]

Done.

+        g_browser_process->platform_part()
+            ->browser_policy_connector_chromeos()
+            ->GetDeviceCloudPolicyManager();
+    // TODO(tnagel): Do we need to do something for Active Directory management?
+    if (device_cloud_policy_manager) {
+      device_cloud_policy_manager->SetSigninProfileSchemaRegistry(
+          registry.get());
+    }
+  }
+#endif
+
   std::unique_ptr<SchemaRegistryService> service(new SchemaRegistryService(
       std::move(registry), chrome_schema, global_registry));
   registries_[context] = service.get();