Make the internal storage of policy::Schemas ref counted.

chrome/browser/policy/cloud/component_cloud_policy_service_unittest.cc

 // Copyright (c) 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/cloud/component_cloud_policy_service.h"
 
 #include "base/callback.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/pickle.h"
@@ skipping 170 matching lines @@
   scoped_ptr<em::PolicyFetchResponse> CreateResponse() {
     builder_.Build();
     return make_scoped_ptr(new em::PolicyFetchResponse(builder_.policy()));
   }
 
   std::string CreateSerializedResponse() {
     builder_.Build();
     return builder_.GetBlob();
   }
 
-  scoped_ptr<SchemaOwner> CreateTestSchema() {
+  Schema CreateTestSchema() {
     std::string error;
-    scoped_ptr<SchemaOwner> schema = SchemaOwner::Parse(kTestSchema, &error);
-    EXPECT_TRUE(schema) << error;
-    return schema.Pass();
+    Schema schema = Schema::Parse(kTestSchema, &error);
+    EXPECT_TRUE(schema.valid()) << error;
+    return schema;
   }
 
   base::MessageLoop loop_;
   base::ScopedTempDir temp_dir_;
   scoped_refptr<TestURLRequestContextGetter> request_context_;
   net::TestURLFetcherFactory fetcher_factory_;
   MockComponentCloudPolicyDelegate delegate_;
   // |cache_| is owned by the |service_| and is invalid once the |service_|
   // is destroyed.
   ResourceCache* cache_;
@@ skipping 304 matching lines @@
   Mock::VerifyAndClearExpectations(&delegate_);
 
   // The policy is now being served.
   PolicyNamespace ns(POLICY_DOMAIN_EXTENSIONS, kTestExtension);
   PolicyBundle expected_bundle;
   expected_bundle.Get(ns).CopyFrom(expected_policy_);
   EXPECT_TRUE(service_->policy().Equals(expected_bundle));
 }
 
 }  // namespace policy