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

third_party/WebKit/Source/modules/sensor/SensorProxy.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 "modules/sensor/SensorProxy.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/sensor/SensorProviderProxy.h"
 #include "modules/sensor/SensorReading.h"
@@ skipping 30 matching lines @@
   visitor->trace(m_document);
   visitor->trace(m_readingUpdater);
   visitor->trace(m_reading);
   visitor->trace(m_observers);
   visitor->trace(m_provider);
   PageVisibilityObserver::trace(visitor);
 }
 
 void SensorProxy::addObserver(Observer* observer) {
   if (!m_observers.contains(observer))
-    m_observers.add(observer);
+    m_observers.insert(observer);
 }
 
 void SensorProxy::removeObserver(Observer* observer) {
   m_observers.remove(observer);
 }
 
 void SensorProxy::initialize() {
   if (m_state != Uninitialized)
     return;
 
@@ skipping 210 matching lines @@
   const device::OneWriterSeqLock& seqlock = buffer->seqlock.value();
   auto version = seqlock.ReadBegin();
   auto readingData = buffer->reading;
   if (seqlock.ReadRetry(version))
     return false;
   result = readingData;
   return true;
 }
 
 }  // namespace blink