Migrate WTF::HashSet::add() to ::insert() [part 1 of N]

third_party/WebKit/Source/core/dom/IntersectionObserverController.cpp

 // Copyright 2016 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.
 
 #include "core/dom/IntersectionObserverController.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/TaskRunnerHelper.h"
 #include "platform/instrumentation/tracing/TraceEvent.h"
@@ skipping 24 matching lines @@
     TaskRunnerHelper::get(TaskType::Unthrottled, getExecutionContext())
         ->postTask(BLINK_FROM_HERE,
                    WTF::bind(&IntersectionObserverController::
                                  deliverIntersectionObservations,
                              m_weakPtrFactory.createWeakPtr()));
   }
 }
 
 void IntersectionObserverController::scheduleIntersectionObserverForDelivery(
     IntersectionObserver& observer) {
-  m_pendingIntersectionObservers.add(&observer);
+  m_pendingIntersectionObservers.insert(&observer);
   postTaskToDeliverObservations();
 }
 
 void IntersectionObserverController::resume() {
   // If the callback fired while DOM objects were suspended, notifications might
   // be late, so deliver them right away (rather than waiting to fire again).
   if (m_callbackFiredWhileSuspended) {
     m_callbackFiredWhileSuspended = false;
     postTaskToDeliverObservations();
   }
@@ skipping 21 matching lines @@
       "IntersectionObserverController::computeTrackedIntersectionObservations");
   for (auto& observer : m_trackedIntersectionObservers) {
     observer->computeIntersectionObservations();
     if (observer->hasEntries())
       scheduleIntersectionObserverForDelivery(*observer);
   }
 }
 
 void IntersectionObserverController::addTrackedObserver(
     IntersectionObserver& observer) {
-  m_trackedIntersectionObservers.add(&observer);
+  m_trackedIntersectionObservers.insert(&observer);
 }
 
 void IntersectionObserverController::removeTrackedObserversForRoot(
     const Node& root) {
   HeapVector<Member<IntersectionObserver>> toRemove;
   for (auto& observer : m_trackedIntersectionObservers) {
     if (observer->root() == &root)
       toRemove.push_back(observer);
   }
   m_trackedIntersectionObservers.removeAll(toRemove);
 }
 
 DEFINE_TRACE(IntersectionObserverController) {
   visitor->trace(m_trackedIntersectionObservers);
   visitor->trace(m_pendingIntersectionObservers);
   SuspendableObject::trace(visitor);
 }
 
 }  // namespace blink