Add a LocationUtils class to give all Chromium Android code access to location helpers.

chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEngineAdapter.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.preferences;
 
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Resources;
@@ skipping 16 matching lines @@
 import org.chromium.base.ContextUtils;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.omnibox.geo.GeolocationHeader;
 import org.chromium.chrome.browser.preferences.website.ContentSetting;
 import org.chromium.chrome.browser.preferences.website.GeolocationInfo;
 import org.chromium.chrome.browser.preferences.website.SingleWebsitePreferences;
 import org.chromium.chrome.browser.preferences.website.WebsitePreferenceBridge;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService.LoadListener;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService.TemplateUrl;
+import org.chromium.components.location.LocationUtils;
 import org.chromium.ui.text.SpanApplier;
 import org.chromium.ui.text.SpanApplier.SpanInfo;
 
 import java.util.List;
 
 /**
 * A custom adapter for listing search engines.
 */
 public class SearchEngineAdapter extends BaseAdapter implements LoadListener, OnClickListener {
     /**
@@ skipping 150 matching lines @@
                 info.setCheckable(true);
                 info.setChecked(selected);
             }
         });
 
         TextView link = (TextView) view.findViewById(R.id.link);
         link.setVisibility(selected ? View.VISIBLE : View.GONE);
         if (selected) {
             ForegroundColorSpan linkSpan = new ForegroundColorSpan(
                     ApiCompatibilityUtils.getColor(resources, R.color.pref_accent_color));
-            if (LocationSettings.getInstance().isSystemLocationSettingEnabled()) {
+            if (LocationUtils.getInstance().isSystemLocationSettingEnabled(mContext)) {
                 String message = mContext.getString(
                         locationEnabled(position, true)
                         ? R.string.search_engine_location_allowed
                         : R.string.search_engine_location_blocked);
                 SpannableString messageWithLink = new SpannableString(message);
                 messageWithLink.setSpan(linkSpan, 0, messageWithLink.length(), 0);
                 link.setText(messageWithLink);
             } else {
                 link.setText(SpanApplier.applySpans(
                         mContext.getString(R.string.android_location_off),
@@ skipping 45 matching lines @@
         TemplateUrlService.getInstance().setSearchEngine(toIndex(mSelectedSearchEnginePosition));
 
         // Report the change back.
         TemplateUrl templateUrl = mSearchEngines.get(mSelectedSearchEnginePosition);
         mCallback.currentSearchEngineDetermined(templateUrl.getShortName());
 
         notifyDataSetChanged();
     }
 
     private void onLocationLinkClicked() {
-        if (!LocationSettings.getInstance().isSystemLocationSettingEnabled()) {
-            mContext.startActivity(
-                    LocationSettings.getInstance().getSystemLocationSettingsIntent());
+        if (!LocationUtils.getInstance().isSystemLocationSettingEnabled(mContext)) {
+            mContext.startActivity(LocationUtils.getInstance().getSystemLocationSettingsIntent());
         } else {
             Intent settingsIntent = PreferencesLauncher.createIntentForSettingsPage(
                     mContext, SingleWebsitePreferences.class.getName());
             String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
                     toIndex(mSelectedSearchEnginePosition));
             Bundle fragmentArgs = SingleWebsitePreferences.createFragmentArgsForSite(url);
             fragmentArgs.putBoolean(SingleWebsitePreferences.EXTRA_LOCATION,
                     locationEnabled(mSelectedSearchEnginePosition, true));
             settingsIntent.putExtra(Preferences.EXTRA_SHOW_FRAGMENT_ARGUMENTS, fragmentArgs);
             mContext.startActivity(settingsIntent);
         }
         mCallback.onDismissDialog();
     }
 
     private boolean locationEnabled(int position, boolean checkGeoHeader) {
         if (position == -1) return false;
 
         String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
                 toIndex(position));
         GeolocationInfo locationSettings = new GeolocationInfo(url, null, false);
         ContentSetting locationPermission = locationSettings.getContentSetting();
         // Handle the case where the geoHeader being sent when no permission has been specified.
         if (locationPermission == ContentSetting.ASK && checkGeoHeader) {
             return GeolocationHeader.isGeoHeaderEnabledForUrl(mContext, url, false);
         }
         return locationPermission == ContentSetting.ALLOW;
     }
 }