Remove legacy SELECT popup code.

Source/platform/HostWindow.h

 /*
  * Copyright (C) 2008 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef HostWindow_h
 #define HostWindow_h
 
 #include "platform/PlatformExport.h"
-#include "platform/graphics/paint/DisplayItemClient.h"
 #include "wtf/FastAllocBase.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 class IntRect;
 struct WebScreenInfo;
 
 class PLATFORM_EXPORT HostWindow {
     WTF_MAKE_NONCOPYABLE(HostWindow); WTF_MAKE_FAST_ALLOCATED(HostWindow);
 public:
     HostWindow() { }
     virtual ~HostWindow() { }
 
     // Requests the host invalidate the contents.
     virtual void invalidateRect(const IntRect& updateRect) = 0;
 
-    // Requests the host to invalidate display items, if owned by the host
-    // window. At present Chrome does not (display items are owned by the
-    // GraphicsLayer instead), but PopupContainerClient does.
-    virtual void invalidateDisplayItemClient(DisplayItemClient) { }
-    virtual void invalidateAllDisplayItems() { }
-
     // Converts from the window coordinates to screen coordinates.
     virtual IntRect viewportToScreen(const IntRect&) const = 0;
 
     virtual void scheduleAnimation() = 0;
 };
 
 } // namespace blink
 
 #endif // HostWindow_h