Misc search clean up

- Make color mode page searchable and suppress its parent page.
- Suppress entire DataUsageSummaryLegacy page in search. This page will
  be deleted soon

Change-Id: I0f98c9073358934b98e986d034c89a9bf87e58ad
Fixes: 70720645
Test: robotests

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

@@ -27,15 +27,14 @@ import com.android.settings.core.BasePreferenceController;
 
 public class ColorModePreferenceController extends BasePreferenceController {
     private static final String TAG = "ColorModePreference";
-    private static final String KEY_COLOR_MODE = "color_mode";
 
     private static final int SURFACE_FLINGER_TRANSACTION_QUERY_WIDE_COLOR = 1024;
 
     private final ConfigurationWrapper mConfigWrapper;
     private ColorDisplayController mColorDisplayController;
 
-    public ColorModePreferenceController(Context context) {
-        super(context, KEY_COLOR_MODE);
+    public ColorModePreferenceController(Context context, String key) {
+        super(context, key);
         mConfigWrapper = new ConfigurationWrapper();
     }
 
@@ -43,7 +42,7 @@ public class ColorModePreferenceController extends BasePreferenceController {
     public int getAvailabilityStatus() {
         return mConfigWrapper.isScreenWideColorGamut()
                 && !getColorDisplayController().getAccessibilityTransformActivated() ?
-                AVAILABLE : DISABLED_FOR_USER;
+                AVAILABLE_UNSEARCHABLE : DISABLED_FOR_USER;
     }
 
     @Override

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

@@ -15,6 +15,8 @@ package com.android.settings.display;
 
 import android.content.Context;
 import android.graphics.drawable.Drawable;
+import android.provider.SearchIndexableResource;
+
 import androidx.annotation.VisibleForTesting;
 import androidx.preference.PreferenceScreen;
 
@@ -23,13 +25,18 @@ import com.android.internal.logging.nano.MetricsProto;
 
 import com.android.settings.applications.LayoutPreference;
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settings.search.Indexable;
 import com.android.settings.widget.RadioButtonPickerFragment;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.CandidateInfo;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 @SuppressWarnings("WeakerAccess")
+@SearchIndexable
 public class ColorModePreferenceFragment extends RadioButtonPickerFragment
         implements ColorDisplayController.Callback {
 
@@ -181,4 +188,15 @@ public class ColorModePreferenceFragment extends RadioButtonPickerFragment
             getActivity().onBackPressed();
         }
     }
+
+    public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider() {
+                @Override
+                public List<SearchIndexableResource> getXmlResourcesToIndex(
+                        Context context, boolean enabled) {
+                    final SearchIndexableResource sir = new SearchIndexableResource(context);
+                    sir.xmlResId = R.xml.color_mode_settings;
+                    return Arrays.asList(sir);
+                }
+            };
 }