Add UsbDefaultFragment and tests

Replace old USB screen in developer options with
UsbDefaultFragment.

Test: pass
Bug: 62876645
Change-Id: I8428a2814b7e1abd7d0fa9fa9980dbc02cfa0034

src/com/android/settings/wrapper/UsbManagerWrapper.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2018 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.wrapper;
+
+import android.hardware.usb.UsbManager;
+
+public class UsbManagerWrapper {
+    private UsbManager mUsbManager;
+
+    public UsbManagerWrapper(UsbManager manager) {
+        mUsbManager = manager;
+    }
+
+    public long getCurrentFunctions() {
+        return mUsbManager.getCurrentFunctions();
+    }
+
+    public long usbFunctionsFromString(String str) {
+        return UsbManager.usbFunctionsFromString(str);
+    }
+}