Integrate refactored device-state auto-rotate setting manager

Added DeviceStateAutoRotateSettingManagerProvider to provide appropriate implementation of DeviceStateAutoRotateSettingManager based on flag.
Integrate DeviceStateAutoRotateSettingManagerImpl to be used when auto-rotate refactor flag is ON.
For more info:go/auto-rotate-refactor
Bug: 394303723
Bug: 394303731
Flag: com.android.window.flags.enable_device_state_auto_rotate_setting_refactor
Test: atest DeviceStateAutoRotateSettingManagerProviderTest

Change-Id: I63494b6548f1f533a9a1979f2b19640c3ad1dc8d

src/com/android/settings/display/DeviceStateAutoRotateSettingManagerProvider.kt

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2025 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.display
+
+import android.content.Context
+import android.hardware.devicestate.DeviceStateManager
+import android.os.Build
+import android.os.Handler
+import android.os.Looper
+import com.android.internal.annotations.VisibleForTesting
+import com.android.settingslib.devicestate.AndroidSecureSettings
+import com.android.settingslib.devicestate.DeviceStateAutoRotateSettingManager
+import com.android.settingslib.devicestate.DeviceStateAutoRotateSettingManagerProvider.createInstance
+import com.android.settingslib.devicestate.PosturesHelper
+import com.android.settingslib.utils.ThreadUtils
+import com.android.window.flags.Flags
+
+/**
+ * Provides appropriate instance of [DeviceStateAutoRotateSettingManager], based on the value of
+ * [Flags.FLAG_ENABLE_DEVICE_STATE_AUTO_ROTATE_SETTING_REFACTOR].
+ */
+object DeviceStateAutoRotateSettingManagerProvider {
+    private var nullableSingletonSettingManager: DeviceStateAutoRotateSettingManager? = null
+
+    /**
+     * Provides a singleton instance of [DeviceStateAutoRotateSettingManager], based on the
+     * value of[Flags.FLAG_ENABLE_DEVICE_STATE_AUTO_ROTATE_SETTING_REFACTOR]. It is supposed to
+     * be used by apps that don't support dagger to provide and manager instance.
+     */
+    @JvmStatic
+    fun getSingletonInstance(context: Context) =
+        nullableSingletonSettingManager ?: createInstance(
+            context,
+            ThreadUtils.getBackgroundExecutor(),
+            AndroidSecureSettings(context.contentResolver),
+            Handler(Looper.getMainLooper()),
+            PosturesHelper(context, context.getSystemService(DeviceStateManager::class.java))
+        ).also {
+            nullableSingletonSettingManager = it
+        }
+
+    /** Resets the singleton instance of [DeviceStateAutoRotateSettingManager]. */
+    @JvmStatic
+    @VisibleForTesting
+    fun resetInstance() {
+        nullableSingletonSettingManager = null
+    }
+}