Fix crash during sync load of the signin profile

chrome/browser/policy/schema_registry_service_factory.cc

 // 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.
 
 #include "chrome/browser/policy/schema_registry_service_factory.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "build/build_config.h"
@@ skipping 105 matching lines @@
     // DeviceLocalAccountPolicyBroker, which uses the registry to fetch and
     // cache policy even if there is no active session for that account.
     // Use a ForwardingSchemaRegistry that wraps this SchemaRegistry.
     registry.reset(new ForwardingSchemaRegistry(broker->schema_registry()));
   }
 #endif
 
   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();
   return service;
 }
 
 void SchemaRegistryServiceFactory::BrowserContextShutdown(
     content::BrowserContext* context) {
   if (context->IsOffTheRecord())
     return;
@@ skipping 15 matching lines @@
 
 bool SchemaRegistryServiceFactory::HasTestingFactory(
     content::BrowserContext* context) {
   return false;
 }
 
 void SchemaRegistryServiceFactory::CreateServiceNow(
     content::BrowserContext* context) {}
 
 }  // namespace policy