Merge "Move IP::isConfigured/TrustedProxy() to ProxyLookup service"

diff --combined autoload.php
index cbc079c,aa0f561..786d12f
--- 1/autoload.php
--- 2/autoload.php
+++ b/autoload.php
@@@ -1100,6 -1100,7 +1100,7 @@@ $wgAutoloadLocalClasses = 
        'ProtectedPagesPager' => __DIR__ . '/includes/specials/SpecialProtectedpages.php',
        'ProtectedTitlesPager' => __DIR__ . '/includes/specials/pagers/ProtectedTitlesPager.php',
        'ProtectionForm' => __DIR__ . '/includes/ProtectionForm.php',
+       'ProxyLookup' => __DIR__ . '/includes/ProxyLookup.php',
        'PruneFileCache' => __DIR__ . '/maintenance/pruneFileCache.php',
        'PublishStashedFileJob' => __DIR__ . '/includes/jobqueue/jobs/PublishStashedFileJob.php',
        'PurgeAction' => __DIR__ . '/includes/actions/PurgeAction.php',
@@@ -1225,7 -1226,7 +1226,7 @@@
        'SQLiteField' => __DIR__ . '/includes/libs/rdbms/field/SQLiteField.php',
        'SVGMetadataExtractor' => __DIR__ . '/includes/media/SVGMetadataExtractor.php',
        'SVGReader' => __DIR__ . '/includes/media/SVGMetadataExtractor.php',
 -      'SamplingStatsdClient' => __DIR__ . '/includes/libs/SamplingStatsdClient.php',
 +      'SamplingStatsdClient' => __DIR__ . '/includes/libs/stats/SamplingStatsdClient.php',
        'Sanitizer' => __DIR__ . '/includes/Sanitizer.php',
        'SavepointPostgres' => __DIR__ . '/includes/libs/rdbms/database/utils/SavepointPostgres.php',
        'ScopedCallback' => __DIR__ . '/includes/libs/ScopedCallback.php',