Merge "Add a developer option to disable app child process restrictions"

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -656,6 +656,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new StylusHandwritingPreferenceController(context));
         controllers.add(new IngressRateLimitPreferenceController((context)));
         controllers.add(new BackAnimationPreferenceController(context, fragment));
+        controllers.add(new PhantomProcessPreferenceController(context));
 
         return controllers;
     }

src/com/android/settings/development/PhantomProcessPreferenceController.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.development;
+
+import static android.util.FeatureFlagUtils.SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS;
+
+import android.content.Context;
+import android.util.FeatureFlagUtils;
+import android.util.Log;
+
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * PreferenceController for MockModem
+ */
+public class PhantomProcessPreferenceController extends
+        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
+        PreferenceControllerMixin {
+
+    private static final String TAG = "PhantomProcessPreferenceController";
+    private static final String DISABLE_PHANTOM_PROCESS_MONITOR_KEY =
+            "disable_phantom_process_monitor";
+
+    public PhantomProcessPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return DISABLE_PHANTOM_PROCESS_MONITOR_KEY;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue; // true means we're disabling this flag.
+        try {
+            FeatureFlagUtils.setEnabled(mContext,
+                    SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS,
+                    !isEnabled);
+        } catch (RuntimeException e) {
+            Log.e(TAG, "Fail to set feature flag: " + e.getMessage());
+        }
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        try {
+            final boolean isEnabled = !FeatureFlagUtils.isEnabled(mContext,
+                    SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS);
+            ((SwitchPreference) mPreference).setChecked(isEnabled);
+        } catch (RuntimeException e) {
+            Log.e(TAG, "Fail to get feature flag: " + e.getMessage());
+        }
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        try {
+            FeatureFlagUtils.setEnabled(mContext,
+                    SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS,
+                    true /* Enable the monitoring */);
+            ((SwitchPreference) mPreference).setChecked(false);
+        } catch (RuntimeException e) {
+            Log.e(TAG, "Fail to set feature flag: " + e.getMessage());
+        }
+    }
+}