Re-write many calls to WrapUnique() with MakeUnique()

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
index 904de32c1c20ba2169a61f01df6fcb5297f488c8..196200a4f3d6c9bcabe52cb7febbaacd528214a6 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -173,8 +173,8 @@ void BluetoothDeviceConnectError(
 
 std::unique_ptr<ash::CastConfigDelegate> CreateCastConfigDelegate() {
   if (CastConfigDelegateMediaRouter::IsEnabled())
-    return base::WrapUnique(new CastConfigDelegateMediaRouter());
-  return base::WrapUnique(new CastConfigDelegateChromeos());
+    return base::MakeUnique<CastConfigDelegateMediaRouter>();
+  return base::MakeUnique<CastConfigDelegateChromeos>();
 }
 
 void ShowSettingsSubPageForActiveUser(const std::string& sub_page) {