Convert //base to use std::unique_ptr

base/trace_event/trace_event_system_stats_monitor_unittest.cc

 // Copyright 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 "base/trace_event/trace_event_system_stats_monitor.h"
 
 #include <sstream>
 #include <string>
 
 #include "base/macros.h"
@@ skipping 18 matching lines @@
 
 //////////////////////////////////////////////////////////////////////////////
 
 TEST_F(TraceSystemStatsMonitorTest, TraceEventSystemStatsMonitor) {
   MessageLoop message_loop;
 
   // Start with no observers of the TraceLog.
   EXPECT_EQ(0u, TraceLog::GetInstance()->GetObserverCountForTest());
 
   // Creating a system stats monitor adds it to the TraceLog observer list.
-  scoped_ptr<TraceEventSystemStatsMonitor> system_stats_monitor(
+  std::unique_ptr<TraceEventSystemStatsMonitor> system_stats_monitor(
       new TraceEventSystemStatsMonitor(message_loop.task_runner()));
   EXPECT_EQ(1u, TraceLog::GetInstance()->GetObserverCountForTest());
   EXPECT_TRUE(
       TraceLog::GetInstance()->HasEnabledStateObserver(
           system_stats_monitor.get()));
 
   // By default the observer isn't dumping memory profiles.
   EXPECT_FALSE(system_stats_monitor->IsTimerRunningForTest());
 
   // Simulate enabling tracing.
   system_stats_monitor->StartProfiling();
   message_loop.RunUntilIdle();
   EXPECT_TRUE(system_stats_monitor->IsTimerRunningForTest());
 
   // Simulate disabling tracing.
   system_stats_monitor->StopProfiling();
   message_loop.RunUntilIdle();
   EXPECT_FALSE(system_stats_monitor->IsTimerRunningForTest());
 
   // Deleting the observer removes it from the TraceLog observer list.
   system_stats_monitor.reset();
   EXPECT_EQ(0u, TraceLog::GetInstance()->GetObserverCountForTest());
 }
 #endif  // !defined(OS_IOS)
 
 }  // namespace trace_event
 }  // namespace base