Replaced auto-fill by autofill to keep it consistent with API style.

To keep backward compatibility, it looks for the new service (AutofillService),
then falls back to the old one (AutoFillService) if not found.

Bug: 35956626
Bug: 36024626
Test: manual verification with a custom service
Test: RunSettingsRoboTests passes

Change-Id: I64112ac5d796e94866e632ec8ea79a3fb13e3d9b

src/com/android/settings/applications/defaultapps/DefaultAutofillPreferenceController.java

@@ -0,0 +1,63 @@
+/*
+ * 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.defaultapps;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.provider.Settings;
+import android.text.TextUtils;
+
+public class DefaultAutofillPreferenceController extends DefaultAppPreferenceController {
+
+    public DefaultAutofillPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return "default_autofill";
+    }
+
+    @Override
+    protected Intent getSettingIntent(DefaultAppInfo info) {
+        if (info == null) {
+            return null;
+        }
+        final DefaultAutofillPicker.AutofillSettingIntentProvider intentProvider =
+                new DefaultAutofillPicker.AutofillSettingIntentProvider(
+                        mPackageManager.getPackageManager(), info.getKey());
+        return intentProvider.getIntent();
+    }
+
+    @Override
+    protected DefaultAppInfo getDefaultAppInfo() {
+        final String flattenComponent = Settings.Secure.getString(mContext.getContentResolver(),
+                DefaultAutofillPicker.SETTING);
+        if (!TextUtils.isEmpty(flattenComponent)) {
+            DefaultAppInfo appInfo = new DefaultAppInfo(
+                    mUserId, ComponentName.unflattenFromString(flattenComponent));
+            return appInfo;
+        }
+        return null;
+    }
+}