Allow PolicyLoadStatusSample to override reporting method

components/policy/core/common/policy_loader_mac.mm

 // Copyright (c) 2015 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 "components/policy/core/common/policy_loader_mac.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 52 matching lines @@
 }
 
 std::unique_ptr<PolicyBundle> PolicyLoaderMac::Load() {
   preferences_->AppSynchronize(application_id_);
   std::unique_ptr<PolicyBundle> bundle(new PolicyBundle());
 
   // Load Chrome's policy.
   PolicyMap& chrome_policy =
       bundle->Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()));
 
-  PolicyLoadStatusSample status;
+  PolicyLoadStatusUmaReporter status;
   bool policy_present = false;
   const Schema* schema =
       schema_map()->GetSchema(PolicyNamespace(POLICY_DOMAIN_CHROME, ""));
   for (Schema::Iterator it = schema->GetPropertiesIterator(); !it.IsAtEnd();
        it.Advance()) {
     base::ScopedCFTypeRef<CFStringRef> name(
         base::SysUTF8ToCFStringRef(it.key()));
     base::ScopedCFTypeRef<CFPropertyListRef> value(
         preferences_->CopyAppValue(name, application_id_));
     if (!value)
@@ skipping 104 matching lines @@
     }
   }
 }
 
 void PolicyLoaderMac::OnFileUpdated(const base::FilePath& path, bool error) {
   if (!error)
     Reload(false);
 }
 
 }  // namespace policy