Change print setting from a dynamic tile to static pref

...because dynamic tile is a lot harder to index correctly.

- Removed metadata that makes PrintSettings a dynamic tile.
- Added PrintSettings into connected_device xml.
- Added a new PreferenceController - all summary updating logic is
  copied from PrintSettingsFragment

Change-Id: I41e7c9d23e97ecd5a043ac7c33f2d404260c92e7
Fixes: 73128944
Test: robotests

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

@@ -0,0 +1,54 @@
+/*
+ * 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.content.Context;
+import android.print.PrintJob;
+import android.print.PrintManager;
+import android.printservice.PrintServiceInfo;
+
+import java.util.List;
+
+/**
+ * Wrapper class for {@link PrintManager}. This is necessary to increase testability in Robolectric.
+ */
+public class PrintManagerWrapper {
+
+    private final PrintManager mPrintManager;
+
+    public PrintManagerWrapper(Context context) {
+        mPrintManager = ((PrintManager) context.getSystemService(Context.PRINT_SERVICE))
+                .getGlobalPrintManagerForUser(context.getUserId());
+    }
+
+    public List<PrintServiceInfo> getPrintServices(int selectionFlags) {
+        return mPrintManager.getPrintServices(selectionFlags);
+    }
+
+    public void addPrintJobStateChanegListener(PrintManager.PrintJobStateChangeListener listener) {
+        mPrintManager.addPrintJobStateChangeListener(listener);
+    }
+
+    public void removePrintJobStateChangeListener(
+            PrintManager.PrintJobStateChangeListener listener) {
+        mPrintManager.removePrintJobStateChangeListener(listener);
+    }
+
+    public List<PrintJob> getPrintJobs() {
+        return mPrintManager.getPrintJobs();
+    }
+}