diff --git a/hardware_android.cc b/hardware_android.cc
index 86432a9..947b13a 100644
--- a/hardware_android.cc
+++ b/hardware_android.cc
@@ -28,7 +28,6 @@
 #include <android-base/properties.h>
 #include <base/files/file_util.h>
 #include <base/strings/stringprintf.h>
-#include <brillo/make_unique_ptr.h>
 
 #include "update_engine/common/hardware.h"
 #include "update_engine/common/platform_constants.h"
@@ -99,7 +98,7 @@
 
 // Factory defined in hardware.h.
 std::unique_ptr<HardwareInterface> CreateHardware() {
-  return brillo::make_unique_ptr(new HardwareAndroid());
+  return std::make_unique<HardwareAndroid>();
 }
 
 }  // namespace hardware
@@ -201,4 +200,14 @@
   return GetIntProperty<int64_t>(kPropBuildDateUTC, 0);
 }
 
+bool HardwareAndroid::GetFirstActiveOmahaPingSent() const {
+  LOG(WARNING) << "STUB: Assuming first active omaha was never set.";
+  return false;
+}
+
+void HardwareAndroid::SetFirstActiveOmahaPingSent() {
+  LOG(WARNING) << "STUB: Assuming first active omaha is never set.";
+  return;
+}
+
 }  // namespace chromeos_update_engine