Fix missing declared accessibility PreferenceControllers.

This includes 3 fixes:

Adds missing settings:controller attribute for bold & high-contrast
text preferences.

Separates VibrationSettings into two fragments, one per fragment XML resource.
  Instead of using a conditional to choose the XML resource ID,
  we now use the conditional to choose which fragment to launch.
  This allows both fragment's preference controllers to be inspected
  by CodeInspectionTest#runSliceControllerInXmlInspection.
  Also updates the preference keys which must be unique per XML in order
  to appear in Settings Search.

Adds Magnification preference controllers to exempt-not-in-XML list.
  These controllers are for fragments that are not declared in an XML.
  See ToggleScreenMagnificationPreferenceFragment
        #getPreferenceScreenResId.

Bug: 289967175
Test: atest SettingsRoboTests:com.android.settings.accessibility
Test: atest CodeInspectionTest#runSliceControllerInXmlInspection;
      Observe no errors in the accessibility package.
Test: Open Settings > Accessibility > Vibration & haptics;
      observe vibration intensity page is shown (behavior unchanged).
      Hardcode config_vibration_supported_intensity_levels=1;
      observe vibration page with toggles is shown (behavior unchanged).
Change-Id: I257b5ad390371bedb1623af6289016b06d478707

src/com/android/settings/accessibility/VibrationIntensitySettingsFragment.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2023 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.accessibility;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.content.res.Resources;
+import android.os.Bundle;
+import android.os.Vibrator;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.android.settings.R;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.flags.Flags;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
+
+/** Accessibility settings for the vibration. */
+@SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC)
+public class VibrationIntensitySettingsFragment extends DashboardFragment {
+
+    private static final String TAG = "VibrationIntensitySettings";
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.ACCESSIBILITY_VIBRATION;
+    }
+
+    @Override
+    public int getHelpResource() {
+        return R.string.help_uri_accessibility_vibration;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.accessibility_vibration_intensity_settings;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @VisibleForTesting
+    static boolean isPageSearchEnabled(Context context) {
+        final int supportedIntensityLevels = context.getResources().getInteger(
+                R.integer.config_vibration_supported_intensity_levels);
+        final boolean hasVibrator = context.getSystemService(Vibrator.class).hasVibrator();
+        if (Flags.separateAccessibilityVibrationSettingsFragments()) {
+            return hasVibrator && supportedIntensityLevels > 1;
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        final View view = super.onCreateView(inflater, container, savedInstanceState);
+        final Resources res = view.getResources();
+        final RecyclerView rv = getListView();
+        if (rv != null) {
+            final int bottom_padding = res.getDimensionPixelSize(
+                    com.android.settingslib.widget.theme.R.dimen
+                            .settingslib_listPreferredItemPaddingEnd);
+            rv.setPaddingRelative(rv.getPaddingStart(), rv.getPaddingTop(), rv.getPaddingEnd(),
+                    rv.getPaddingBottom() + bottom_padding);
+        }
+        return view;
+    }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.accessibility_vibration_intensity_settings) {
+                @Override
+                protected boolean isPageSearchEnabled(Context context) {
+                    return VibrationIntensitySettingsFragment.isPageSearchEnabled(context);
+                }
+            };
+}