Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/power/peripheral_battery_observer_browsertest.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 "chrome/browser/chromeos/power/peripheral_battery_observer.h"
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 38 matching lines @@
     observer_.reset(new PeripheralBatteryObserver());
   }
 
   void TearDownOnMainThread() override { observer_.reset(); }
 
   void TearDownInProcessBrowserTestFixture() override {
     InProcessBrowserTest::TearDownInProcessBrowserTestFixture();
   }
 
  protected:
-  scoped_ptr<PeripheralBatteryObserver> observer_;
+  std::unique_ptr<PeripheralBatteryObserver> observer_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PeripheralBatteryObserverTest);
 };
 
 IN_PROC_BROWSER_TEST_F(PeripheralBatteryObserverTest, Basic) {
   base::SimpleTestTickClock clock;
   observer_->set_testing_clock(&clock);
 
   NotificationUIManager* notification_manager =
@@ skipping 99 matching lines @@
                       ProfileManager::GetPrimaryUserProfile())) != NULL);
 
   observer_->RemoveBattery(kTestBatteryAddress);
   EXPECT_FALSE(notification_manager->FindById(
                    kTestBatteryAddress,
                    NotificationUIManager::GetProfileID(
                        ProfileManager::GetPrimaryUserProfile())) != NULL);
 }
 
 }  // namespace chromeos