Revert of Non-plafrom-specific part of an OwnerSettingsService is moved to components/ownership/*.

chrome/browser/chromeos/settings/session_manager_operation.cc

Index: chrome/browser/chromeos/settings/session_manager_operation.cc
diff --git a/chrome/browser/chromeos/settings/session_manager_operation.cc b/chrome/browser/chromeos/settings/session_manager_operation.cc
index 33832aa31e7ac08f8b8b6c25266c669ba98c1160..436ea0f416c62788a38e2fbb6870e72dd8237a04 100644
--- a/chrome/browser/chromeos/settings/session_manager_operation.cc
+++ b/chrome/browser/chromeos/settings/session_manager_operation.cc
@@ -251,23 +251,22 @@
 SignAndStoreSettingsOperation::~SignAndStoreSettingsOperation() {}
 
 void SignAndStoreSettingsOperation::Run() {
-  if (!owner_settings_service_) {
-    ReportResult(DeviceSettingsService::STORE_KEY_UNAVAILABLE);
-    return;
-  }
-  owner_settings_service_->IsOwnerAsync(
+  if (!delegate_) {
+    ReportResult(DeviceSettingsService::STORE_KEY_UNAVAILABLE);
+    return;
+  }
+  delegate_->IsOwnerAsync(
       base::Bind(&SignAndStoreSettingsOperation::StartSigning,
                  weak_factory_.GetWeakPtr()));
 }
 
 void SignAndStoreSettingsOperation::StartSigning(bool is_owner) {
-  if (!owner_settings_service_ || !is_owner) {
-    ReportResult(DeviceSettingsService::STORE_KEY_UNAVAILABLE);
-    return;
-  }
-
-  bool rv = owner_settings_service_->AssembleAndSignPolicyAsync(
-      content::BrowserThread::GetBlockingPool(),
+  if (!delegate_ || !is_owner) {
+    ReportResult(DeviceSettingsService::STORE_KEY_UNAVAILABLE);
+    return;
+  }
+
+  bool rv = delegate_->AssembleAndSignPolicyAsync(
       new_policy_.Pass(),
       base::Bind(&SignAndStoreSettingsOperation::StoreDeviceSettingsBlob,
                  weak_factory_.GetWeakPtr()));