Add the new content protection preference option and subpage in Settings -> Security & privacy -> More security & privacy settings.

Bug: 302189945
Test: robotests
m -j256 Settings
atest SettingsRoboTests:ContentProtectionPreferenceControllerTest
atest SettingsRoboTests:ContentProtectionPreferenceFragmentTest

Change-Id: I620d73f8674c1340f9b11cd910620f1d5afb0ec1

tests/robotests/src/com/android/settings/security/ContentProtectionPreferenceControllerTest.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2023 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.security;
+
+import static android.view.contentprotection.flags.Flags.FLAG_SETTING_UI_ENABLED;
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.platform.test.flag.junit.SetFlagsRule;
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+
+import com.android.settings.R;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+@RunWith(RobolectricTestRunner.class)
+public class ContentProtectionPreferenceControllerTest {
+
+    @Rule public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
+    private Context mContext;
+    private ContentProtectionPreferenceController mController;
+    private Preference mPreference;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mController = new ContentProtectionPreferenceController(mContext, "key");
+        mPreference = new Preference(mContext);
+        mPreference.setKey(mController.getPreferenceKey());
+    }
+
+    @Test
+    public void isAvailable_flagSettingUiDisabled_isFalse() {
+        mSetFlagsRule.disableFlags(FLAG_SETTING_UI_ENABLED);
+        assertThat(mController.isAvailable()).isFalse();
+    }
+
+    @Test
+    public void isAvailable_flagSettingUiEnabled_isTrue() {
+        mSetFlagsRule.enableFlags(FLAG_SETTING_UI_ENABLED);
+        assertThat(mController.isAvailable()).isTrue();
+    }
+}