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

chrome/browser/chromeos/policy/device_quirks_policy_browsertest.cc

 // Copyright 2016 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/command_line.h"
 #include "base/files/file_util.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/chromeos/policy/device_policy_cros_browser_test.h"
 #include "chrome/browser/chromeos/policy/proto/chrome_device_policy.pb.h"
@@ skipping 36 matching lines @@
 
     // Create fake icc file.
     path = path.Append(quirks::IdToFileName(kProductId));
     int bytes_written =
         base::WriteFile(path, kFakeIccData, sizeof(kFakeIccData));
     ASSERT_EQ(sizeof(kFakeIccData), static_cast<size_t>(bytes_written));
   }
 
  protected:
   void RefreshPolicyAndWaitDeviceSettingsUpdated() {
-    scoped_ptr<CrosSettings::ObserverSubscription> observer =
+    std::unique_ptr<CrosSettings::ObserverSubscription> observer =
         CrosSettings::Get()->AddSettingsObserver(
             kDeviceQuirksDownloadEnabled,
             base::MessageLoop::current()->QuitWhenIdleClosure());
 
     RefreshDevicePolicy();
     base::MessageLoop::current()->Run();
   }
 
   // Query QuirksManager for icc file, then run msg loop to wait for callback.
   // This won't actually run a Quirks client: if Quirks is enabled, it will
@@ skipping 70 matching lines @@
   quirks_download_enabled = true;
   EXPECT_TRUE(CrosSettings::Get()->GetBoolean(kDeviceQuirksDownloadEnabled,
                                               &quirks_download_enabled));
   EXPECT_FALSE(quirks_download_enabled);
 
   // With policy disabled, Quirks should abort and not find the fake icc file.
   EXPECT_FALSE(TestQuirksEnabled());
 }
 
 }  // namespace chromeos