base: SysInfo::Uptime() returns a TimeDelta

chrome/browser/metrics/perf/perf_provider_chromeos.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/metrics/perf/perf_provider_chromeos.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 
@@ skipping 389 matching lines @@
     AddToPerfHistogram(ILLEGAL_DATA_RETURNED);
     return;
   }
 
   if (!perf_data.empty()) {
     PerfDataProto perf_data_proto;
     if (!perf_data_proto.ParseFromArray(perf_data.data(), perf_data.size())) {
       AddToPerfHistogram(PROTOBUF_NOT_PARSED);
       return;
     }
-    sampled_profile->set_ms_after_boot(base::SysInfo::Uptime());
+    sampled_profile->set_ms_after_boot(
+        base::SysInfo::Uptime().InMilliseconds());
     sampled_profile->mutable_perf_data()->Swap(&perf_data_proto);
   } else {
     DCHECK(!perf_stat.empty());
     PerfStatProto perf_stat_proto;
     if (!perf_stat_proto.ParseFromArray(perf_stat.data(), perf_stat.size())) {
       AddToPerfHistogram(PROTOBUF_NOT_PARSED);
       return;
     }
     sampled_profile->mutable_perf_stat()->Swap(&perf_stat_proto);
   }
@@ skipping 191 matching lines @@
   scoped_ptr<SampledProfile> sampled_profile(new SampledProfile);
   sampled_profile->set_trigger_event(SampledProfile::RESTORE_SESSION);
   sampled_profile->set_ms_after_restore(time_after_restore.InMilliseconds());
   sampled_profile->set_num_tabs_restored(num_tabs_restored);
 
   CollectIfNecessary(sampled_profile.Pass());
   last_session_restore_collection_time_ = base::TimeTicks::Now();
 }
 
 }  // namespace metrics