WindowBase64::atob() does not remove space characters from input

Source/core/frame/DOMWindowBase64.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Samsung Electronics. 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
@@ skipping 17 matching lines @@
  * 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.
  */
 
 #include "config.h"
 #include "core/frame/DOMWindowBase64.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
+#include "core/html/parser/HTMLParserIdioms.h"
 #include "wtf/text/Base64.h"
 
 namespace WebCore {
 
 namespace DOMWindowBase64 {
 
 String btoa(void*, const String& stringToEncode, ExceptionState& es)
 {
     if (stringToEncode.isNull())
         return String();
 
     if (!stringToEncode.containsOnlyLatin1()) {
         es.throwDOMException(InvalidCharacterError, "'btoa' failed: The string to be encoded contains characters outside of the Latin1 range.");
         return String();
     }
 
     return base64Encode(stringToEncode.latin1());
 }
 
 String atob(void*, const String& encodedString, ExceptionState& es)
 {
     if (encodedString.isNull())
         return String();
 
     if (!encodedString.containsOnlyLatin1()) {
         es.throwDOMException(InvalidCharacterError, "'atob' failed: The string to be decoded contains characters outside of the Latin1 range.");
         return String();
     }
-
     Vector<char> out;
-    if (!base64Decode(encodedString, out, Base64FailOnInvalidCharacterOrExcessPadding)) {
+    if (!base64Decode(encodedString, out, isHTMLSpace<UChar>, Base64ValidatePadding)) {
         es.throwDOMException(InvalidCharacterError, "'atob' failed: The string to be decoded is not correctly encoded.");
         return String();
     }
 
     return String(out.data(), out.size());
 }
 
 } // namespace DOMWindowBase64
 
 } // namespace WebCore