Move BrowserThread to content namespace.

chrome/browser/policy/user_policy_disk_cache.cc

 // Copyright (c) 2011 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/user_policy_disk_cache.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/policy/enterprise_metrics.h"
 #include "chrome/browser/policy/proto/device_management_local.pb.h"
 #include "content/public/browser/browser_thread.h"
 
+using content::BrowserThread;
+
 namespace {
 
 // Other places can sample on the same UMA counter, so make sure they all do
 // it on the same thread (UI).
 void SampleUMAOnUIThread(policy::MetricPolicy sample) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   UMA_HISTOGRAM_ENUMERATION(policy::kMetricPolicy, sample,
                             policy::kMetricPolicySize);
 }
 
@@ skipping 110 matching lines @@
   int size = data.size();
   if (file_util::WriteFile(backing_file_path_, data.c_str(), size) != size) {
     LOG(WARNING) << "Failed to write " << backing_file_path_.value();
     SampleUMA(kMetricPolicyStoreFailed);
     return;
   }
   SampleUMA(kMetricPolicyStoreSucceeded);
 }
 
 }  // namespace policy