Remove unused arguments of blink::PopupMenu::show().

third_party/WebKit/Source/web/PopupMenuImpl.h

 // Copyright (c) 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.
 
 #ifndef PopupMenuImpl_h
 #define PopupMenuImpl_h
 
 #include "core/page/PagePopupClient.h"
 #include "platform/PopupMenu.h"
 
@@ skipping 20 matching lines @@
 private:
     PopupMenuImpl(ChromeClientImpl*, HTMLSelectElement&);
 
     class ItemIterationContext;
     void addOption(ItemIterationContext&, HTMLOptionElement&);
     void addOptGroup(ItemIterationContext&, HTMLOptGroupElement&);
     void addSeparator(ItemIterationContext&, HTMLHRElement&);
     void addElementStyle(ItemIterationContext&, HTMLElement&);
 
     // PopupMenu functions:
-    void show(const FloatQuad& controlPosition, const IntSize& controlSize, int index) override;
+    void show() override;
     void hide() override;
     void disconnectClient() override;
     void updateFromElement() override;
 
     // PagePopupClient functions:
     void writeDocument(SharedBuffer*) override;
     void selectFontsFromOwnerDocument(Document&) override;
     void setValueAndClosePopup(int, const String&) override;
     void setValue(const String&) override;
     void closePopup() override;
     Element& ownerElement() override;
     Locale& locale() override;
     void didClosePopup() override;
 
     RawPtrWillBeMember<ChromeClientImpl> m_chromeClient;
     RawPtrWillBeMember<HTMLSelectElement> m_ownerElement;
     PagePopup* m_popup;
     bool m_needsUpdate;
 };
 
 }
 
 #endif // PopupMenuImpl_h