Construct URLSearchParams from sequence initializer.

third_party/WebKit/Source/core/dom/URLSearchParams.h

 // Copyright 2015 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.
 
 #ifndef URLSearchParams_h
 #define URLSearchParams_h
 
+#include <base/gtest_prod_util.h>
+#include <utility>
 #include "bindings/core/v8/Iterable.h"
 #include "bindings/core/v8/ScriptWrappable.h"
-#include "bindings/core/v8/USVStringOrURLSearchParams.h"
+#include "bindings/core/v8/USVStringSequenceSequenceOrUSVStringOrURLSearchParams.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/EncodedFormData.h"
 #include "wtf/Forward.h"
 #include "wtf/text/WTFString.h"
-#include <base/gtest_prod_util.h>
-#include <utility>
 
 namespace blink {
 
 class ExceptionState;
 class DOMURL;
 
-typedef USVStringOrURLSearchParams URLSearchParamsInit;
+typedef USVStringSequenceSequenceOrUSVStringOrURLSearchParams
+    URLSearchParamsInit;
 
 class CORE_EXPORT URLSearchParams final
     : public GarbageCollectedFinalized<URLSearchParams>,
       public ScriptWrappable,
       public PairIterable<String, String> {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  static URLSearchParams* create(const URLSearchParamsInit&);
+  static URLSearchParams* create(const URLSearchParamsInit&, ExceptionState&);
+  static URLSearchParams* create(const Vector<Vector<String>>&,
+                                 ExceptionState&);
 
   static URLSearchParams* create(const String& queryString,
                                  DOMURL* urlObject = nullptr) {
     return new URLSearchParams(queryString, urlObject);
   }
 
   ~URLSearchParams();
 
   // URLSearchParams interface methods
   String toString() const;
@@ skipping 18 matching lines @@
  private:
   FRIEND_TEST_ALL_PREFIXES(URLSearchParamsTest, EncodedFormData);
 
   explicit URLSearchParams(const String&, DOMURL* = nullptr);
   explicit URLSearchParams(URLSearchParams*);
 
   void runUpdateSteps();
   IterationSource* startIteration(ScriptState*, ExceptionState&) override;
   void encodeAsFormData(Vector<char>&) const;
 
+  void appendWithoutUpdate(const String& name, const String& value);
+
   Vector<std::pair<String, String>> m_params;
 
   WeakMember<DOMURL> m_urlObject;
 };
 
 }  // namespace blink
 
 #endif  // URLSearchParams_h