Convert //ash from scoped_ptr to std::unique_ptr

ash/system/chromeos/power/power_status_unittest.cc

 // Copyright (c) 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 "ash/system/chromeos/power/power_status.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "base/message_loop/message_loop.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace ash {
 namespace {
 
 class TestObserver : public PowerStatus::Observer {
  public:
@@ skipping 29 matching lines @@
   void TearDown() override {
     power_status_->RemoveObserver(test_observer_.get());
     test_observer_.reset();
     PowerStatus::Shutdown();
     chromeos::DBusThreadManager::Shutdown();
   }
 
  protected:
   base::MessageLoopForUI message_loop_;
   PowerStatus* power_status_;  // Not owned.
-  scoped_ptr<TestObserver> test_observer_;
+  std::unique_ptr<TestObserver> test_observer_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PowerStatusTest);
 };
 
 TEST_F(PowerStatusTest, InitializeAndUpdate) {
   // Test that the initial power supply state should be acquired after
   // PowerStatus is instantiated. This depends on
   // PowerManagerClientStubImpl, which responds to power status update
   // requests, pretends there is a battery present, and generates some valid
@@ skipping 74 matching lines @@
   EXPECT_EQ(1, hours);
   EXPECT_EQ(0, minutes);
 
   PowerStatus::SplitTimeIntoHoursAndMinutes(
       base::TimeDelta::FromSecondsD(3600.1), &hours, &minutes);
   EXPECT_EQ(1, hours);
   EXPECT_EQ(0, minutes);
 }
 
 }  // namespace ash