SELECT popup: Don't use non-100% zoom level in popup.

third_party/WebKit/Source/core/page/PagePopupClient.h

 /*
  * Copyright (C) 2012 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 40 matching lines @@
   //  - No <select> popups
   //  - window.setValueAndClosePopup(number, string).
   virtual void writeDocument(SharedBuffer*) = 0;
 
   // This is called after the document is ready to do additionary setup.
   virtual void selectFontsFromOwnerDocument(Document&) = 0;
 
   virtual Element& ownerElement() = 0;
   // Returns effective zoom factor of ownerElement, or the page zoom factor if
   // the effective zoom factor is not available.
-  float zoomFactor();
+  virtual float zoomFactor();
   // Returns a Locale object associated to the client.
   virtual Locale& locale() = 0;
 
   // This is called by the content HTML of a PagePopup.
   // An implementation of this function should call
   // ChromeClient::closePagePopup().
   virtual void setValueAndClosePopup(int numValue,
                                      const String& stringValue) = 0;
 
   // This is called by the content HTML of a PagePopup.
@@ skipping 21 matching lines @@
   static void addProperty(const char* name, const IntRect&, SharedBuffer*);
 };
 
 inline void PagePopupClient::addString(const String& str, SharedBuffer* data) {
   CString str8 = str.utf8();
   data->append(str8.data(), str8.length());
 }
 
 }  // namespace blink
 #endif