Migrate LegalSettings to DashboardFragment

- CopyrightPreferenceController
- LegalPreferenceController
- LicensePreferenceController
- TermsPreferenceController
- WallpaperAttributionsPreferenceController
- WebViewLicensePreferenceController

Test: manual
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.deviceinfo
      make RunSettingsRoboTests -j ROBOTEST_FILTER=CodeInspectionTest
      atest UniquePreferenceTest

Change-Id: I28108eb926f9efec63390c2354cb0ebc0a785ec2

src/com/android/settings/deviceinfo/legal/WebViewLicensePreferenceController.java

@@ -0,0 +1,32 @@
+/*
+ * 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.deviceinfo.legal;
+
+import android.content.Context;
+import android.content.Intent;
+
+public class WebViewLicensePreferenceController extends LegalPreferenceController {
+
+    private static final Intent INTENT = new Intent("android.settings.WEBVIEW_LICENSE");
+
+    public WebViewLicensePreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    @Override
+    protected Intent getIntent() {
+        return INTENT;
+    }
+}