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

third_party/WebKit/Source/web/CompositorMutatorImpl.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 "web/CompositorMutatorImpl.h"
 
 #include "core/animation/CustomCompositorAnimationManager.h"
 #include "core/dom/CompositorProxy.h"
 #include "platform/CrossThreadFunctional.h"
 #include "platform/WaitableEvent.h"
@@ skipping 60 matching lines @@
       needToReinvoke = true;
   }
 
   return needToReinvoke;
 }
 
 void CompositorMutatorImpl::registerProxyClient(
     CompositorProxyClientImpl* client) {
   TRACE_EVENT0("compositor-worker", "CompositorMutatorImpl::registerClient");
   DCHECK(!m_proxyClients.contains(client));
-  m_proxyClients.add(client);
+  m_proxyClients.insert(client);
   setNeedsMutate();
 }
 
 void CompositorMutatorImpl::unregisterProxyClient(
     CompositorProxyClientImpl* client) {
   DCHECK(m_proxyClients.contains(client));
   m_proxyClients.remove(client);
 }
 
 void CompositorMutatorImpl::setNeedsMutate() {
   TRACE_EVENT0("compositor-worker", "CompositorMutatorImpl::setNeedsMutate");
   m_client->setNeedsMutate();
 }
 
 }  // namespace blink