Add controllers for default app shortcut preferences.

For AppInfoDashboardFragment:
- add the default app shortcut preferences into the preference screen
instead of creating them dynamically.
- add controller for each of the shortcut preference.

Bug: 69384089
Test: make RunSettingsRoboTests
Change-Id: I1e81944a3bc867fd6a3a0d484bab77c3ad0e6441

src/com/android/settings/applications/appinfo/DefaultBrowserShortcutPreferenceController.java

@@ -0,0 +1,42 @@
+/*
+ * 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.applications.appinfo;
+
+import android.content.Context;
+import android.os.UserHandle;
+
+import com.android.settings.applications.defaultapps.DefaultBrowserPreferenceController;
+
+public class DefaultBrowserShortcutPreferenceController
+        extends DefaultAppShortcutPreferenceControllerBase {
+
+    private static final String KEY = "default_browser";
+
+    public DefaultBrowserShortcutPreferenceController(Context context, String packageName) {
+        super(context, KEY, packageName);
+    }
+
+    @Override
+    protected boolean hasAppCapability() {
+        return DefaultBrowserPreferenceController.hasBrowserPreference(mPackageName, mContext);
+    }
+
+    @Override
+    protected boolean isDefaultApp() {
+        return new DefaultBrowserPreferenceController(mContext)
+                .isBrowserDefault(mPackageName, UserHandle.myUserId());
+    }
+
+}