Tweak search result for adaptive brightness

- Create a new controller for auto brightness in
auto_brightness_detail.xml.
- We only show slice version for search result.
- Change slice summary for adaptive brightness.

Test: visual
Fixes: 130651278
Change-Id: If9b71735bbb2a0ee22676d9dfedab2cf9e778493

src/com/android/settings/display/AutoBrightnessDetailPreferenceController.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2019 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.display;
+
+import android.content.Context;
+
+public class AutoBrightnessDetailPreferenceController extends AutoBrightnessPreferenceController {
+
+    public AutoBrightnessDetailPreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    @Override
+    @AvailabilityStatus
+    public int getAvailabilityStatus() {
+        return mContext.getResources().getBoolean(
+                com.android.internal.R.bool.config_automatic_brightness_available)
+                ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public boolean isSliceable() {
+        return true;
+    }
+}

src/com/android/settings/display/AutoBrightnessPreferenceController.java

@@ -19,7 +19,6 @@ import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL;
 
 import android.content.Context;
 import android.provider.Settings;
-import android.text.TextUtils;
 
 import com.android.settings.R;
 import com.android.settings.core.TogglePreferenceController;
@@ -52,15 +51,10 @@ public class AutoBrightnessPreferenceController extends TogglePreferenceControll
     public int getAvailabilityStatus() {
         return mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_automatic_brightness_available)
-                ? AVAILABLE
+                ? AVAILABLE_UNSEARCHABLE
                 : UNSUPPORTED_ON_DEVICE;
     }
 
-    @Override
-    public boolean isSliceable() {
-        return TextUtils.equals(getPreferenceKey(), "auto_brightness");
-    }
-
     @Override
     public CharSequence getSummary() {
         return mContext.getText(isChecked()