Set QR scan activity to light theme in setup flow

Test: atest
Bug: 131029518
Change-Id: Ibec28e78fcf17390cd3844ead4a88a4e6bff6094

src/com/android/settings/wifi/dpp/WifiDppEnrolleeActivity.java

@@ -18,7 +18,6 @@ package com.android.settings.wifi.dpp;
 
 import android.app.ActionBar;
 import android.app.settings.SettingsEnums;
-import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
@@ -30,6 +29,8 @@ import androidx.fragment.app.FragmentTransaction;
 import com.android.settings.R;
 import com.android.settings.core.InstrumentedActivity;
 
+import com.google.android.setupcompat.util.WizardManagerHelper;
+
 /**
  * To provision "this" device with specified Wi-Fi network.
  *
@@ -54,6 +55,10 @@ public class WifiDppEnrolleeActivity extends InstrumentedActivity implements
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        if (WizardManagerHelper.isAnySetupWizard(getIntent())) {
+            setTheme(R.style.LightTheme_SettingsBase_SetupWizard);
+        }
+
         setContentView(R.layout.wifi_dpp_activity);
         mFragmentManager = getSupportFragmentManager();