Use initializer_lists for static WTF::HashSets.

third_party/WebKit/Source/core/fetch/FetchUtils.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 "core/fetch/FetchUtils.h"
 
 #include "platform/HTTPNames.h"
 #include "platform/network/HTTPHeaderMap.h"
 #include "platform/network/HTTPParsers.h"
 #include "wtf/HashSet.h"
@@ skipping 27 matching lines @@
 
     String m_proxyHeaderPrefix;
     String m_secHeaderPrefix;
     HashSet<String, CaseFoldingHash> m_fixedNames;
 };
 
 ForbiddenHeaderNames::ForbiddenHeaderNames()
     : m_proxyHeaderPrefix("proxy-")
     , m_secHeaderPrefix("sec-")
 {
-    m_fixedNames.add("accept-charset");
-    m_fixedNames.add("accept-encoding");
-    m_fixedNames.add("access-control-request-headers");
-    m_fixedNames.add("access-control-request-method");
-    m_fixedNames.add("connection");
-    m_fixedNames.add("content-length");
-    m_fixedNames.add("cookie");
-    m_fixedNames.add("cookie2");
-    m_fixedNames.add("date");
-    m_fixedNames.add("dnt");
-    m_fixedNames.add("expect");
-    m_fixedNames.add("host");
-    m_fixedNames.add("keep-alive");
-    m_fixedNames.add("origin");
-    m_fixedNames.add("referer");
-    m_fixedNames.add("te");
-    m_fixedNames.add("trailer");
-    m_fixedNames.add("transfer-encoding");
-    m_fixedNames.add("upgrade");
-    m_fixedNames.add("user-agent");
-    m_fixedNames.add("via");
+    m_fixedNames = {
+        "accept-charset",
+        "accept-encoding",
+        "access-control-request-headers",
+        "access-control-request-method",
+        "connection",
+        "content-length",
+        "cookie",
+        "cookie2",
+        "date",
+        "dnt",
+        "expect",
+        "host",
+        "keep-alive",
+        "origin",
+        "referer",
+        "te",
+        "trailer",
+        "transfer-encoding",
+        "upgrade",
+        "user-agent",
+        "via",
+    };
 }
 
 const ForbiddenHeaderNames& ForbiddenHeaderNames::get()
 {
     DEFINE_THREAD_SAFE_STATIC_LOCAL(const ForbiddenHeaderNames, instance, new ForbiddenHeaderNames);
     return instance;
 }
 
 } // namespace
 
@@ skipping 124 matching lines @@
 String FetchUtils::normalizeHeaderValue(const String& value)
 {
     // https://fetch.spec.whatwg.org/#concept-header-value-normalize
     // Strip leading and trailing whitespace from header value.
     // HTTP whitespace bytes are 0x09, 0x0A, 0x0D, and 0x20.
 
     return value.stripWhiteSpace(isHTTPWhitespace);
 }
 
 } // namespace blink