Migrate WTF::Vector::append() to ::push_back() [part 13 of N]

third_party/WebKit/Source/modules/geolocation/Geolocation.cpp

Index: third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
diff --git a/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp b/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
index 98272a4aca47422ca6e5957f03a45e2ba4f0be02..3f0f768d638b2c020a9333fbb0ab07972c2e3542 100644
--- a/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
+++ b/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
@@ -363,9 +363,9 @@ void Geolocation::extractNotifiersWithCachedPosition(
   for (GeoNotifier* notifier : notifiers) {
     if (notifier->useCachedPosition()) {
       if (cached)
-        cached->append(notifier);
+        cached->push_back(notifier);
     } else
-      nonCached.append(notifier);
+      nonCached.push_back(notifier);
   }
   notifiers.swap(nonCached);
 }