Consolidate all wrappers used for testing.

- Add the wrapper package and move all wrappers to the wrapper package.
- Get rid of some wrapper interface/impl implementation and have a
wrapper class directly.

Bug: 65634579
Test: make RunSettingsRoboTests
Change-Id: Ic757d8f7bacfa7a034c7e692205bc1dc4b0e1de1

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

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2017 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.content.pm.ActivityInfo;
+
+/**
+ * This class replicates a subset of the android.content.pm.ActivityInfo. The class
+ * exists so that we can use a thin wrapper around the ActivityInfo in production code and a mock in
+ * tests.
+ */
+public class ActivityInfoWrapper {
+
+    private final ActivityInfo mInfo;
+
+    public ActivityInfoWrapper(ActivityInfo info) {
+        mInfo = info;
+    }
+
+    /**
+     * Returns whether this activity supports picture-in-picture.
+     */
+    public boolean supportsPictureInPicture() {
+        return mInfo.supportsPictureInPicture();
+    }
+}