Reverting this as it causes browser tests on the Linux ChromiumOS builder to fail.

chrome/browser/browser_process_impl.cc

 // Copyright (c) 2012 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/browser_process_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 423 matching lines @@
     // Init() should not reenter this function. Updating
     // |created_browser_policy_connector_| here makes reentering hit the DCHECK.
     created_browser_policy_connector_ = true;
   }
   return browser_policy_connector_.get();
 }
 
 policy::PolicyService* BrowserProcessImpl::policy_service() {
   if (!policy_service_.get()) {
 #if defined(ENABLE_CONFIGURATION_POLICY)
-    policy_service_ = browser_policy_connector()->CreatePolicyService(NULL);
+    policy_service_.reset(
+        browser_policy_connector()->CreatePolicyService(NULL));
 #else
     policy_service_.reset(new policy::PolicyServiceStub());
 #endif
   }
   return policy_service_.get();
 }
 
 IconManager* BrowserProcessImpl::icon_manager() {
   DCHECK(CalledOnValidThread());
   if (!created_icon_manager_)
@@ skipping 463 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)