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

third_party/WebKit/Source/modules/fetch/FetchResponseData.cpp

 // Copyright 2014 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/fetch/FetchResponseData.h"
 
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/DOMArrayBuffer.h"
 #include "modules/fetch/BodyStreamBuffer.h"
 #include "modules/fetch/FetchHeaderList.h"
@@ skipping 108 matching lines @@
       new FetchResponseData(CORSType, m_status, m_statusMessage);
   response->setURLList(m_urlList);
   for (size_t i = 0; i < m_headerList->size(); ++i) {
     const FetchHeaderList::Header* header = m_headerList->list()[i].get();
     const String& name = header->first;
     const bool explicitlyExposed = exposedHeaders.contains(name);
     if (isOnAccessControlResponseHeaderWhitelist(name) ||
         (explicitlyExposed &&
          !FetchUtils::isForbiddenResponseHeaderName(name))) {
       if (explicitlyExposed)
-        response->m_corsExposedHeaderNames.add(name);
+        response->m_corsExposedHeaderNames.insert(name);
       response->m_headerList->append(name, header->second);
     }
   }
   response->m_buffer = m_buffer;
   response->m_mimeType = m_mimeType;
   response->m_internalResponse = const_cast<FetchResponseData*>(this);
   return response;
 }
 
 FetchResponseData* FetchResponseData::createOpaqueFilteredResponse() const {
@@ skipping 156 matching lines @@
   }
 }
 
 DEFINE_TRACE(FetchResponseData) {
   visitor->trace(m_headerList);
   visitor->trace(m_internalResponse);
   visitor->trace(m_buffer);
 }
 
 }  // namespace blink