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

third_party/WebKit/Source/modules/fetch/Response.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/Response.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8ArrayBuffer.h"
@@ skipping 55 matching lines @@
                                          webResponse.blobDataHandle())));
 
   // Filter the response according to |webResponse|'s ResponseType.
   switch (webResponse.responseType()) {
     case WebServiceWorkerResponseTypeBasic:
       response = response->createBasicFilteredResponse();
       break;
     case WebServiceWorkerResponseTypeCORS: {
       HTTPHeaderSet headerNames;
       for (const auto& header : webResponse.corsExposedHeaderNames())
-        headerNames.add(String(header));
+        headerNames.insert(String(header));
       response = response->createCORSFilteredResponse(headerNames);
       break;
     }
     case WebServiceWorkerResponseTypeOpaque:
       response = response->createOpaqueFilteredResponse();
       break;
     case WebServiceWorkerResponseTypeOpaqueRedirect:
       response = response->createOpaqueRedirectFilteredResponse();
       break;
     case WebServiceWorkerResponseTypeDefault:
@@ skipping 371 matching lines @@
       V8HiddenValue::internalBodyBuffer(scriptState->isolate()), bodyBuffer);
 }
 
 DEFINE_TRACE(Response) {
   Body::trace(visitor);
   visitor->trace(m_response);
   visitor->trace(m_headers);
 }
 
 }  // namespace blink