The content='...' parsing error is not a viewport error, so keep it separate

Source/core/dom/ViewportArguments.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2012-2013 Intel Corporation. All rights reserved.
  *
@@ skipping 335 matching lines @@
         arguments->deprecatedTargetDensityDPI = findTargetDensityDPIValue(keyString, valueString, document);
         reportViewportWarning(document, TargetDensityDpiUnsupported, String(), String());
     } else {
         reportViewportWarning(document, UnrecognizedViewportArgumentKeyError, keyString, String());
     }
 }
 
 static const char* viewportErrorMessageTemplate(ViewportErrorCode errorCode)
 {
     static const char* const errors[] = {
-        "Note that ';' is not a key-value pair separator. The list should be comma-separated.",
         "The key \"%replacement1\" is not recognized and ignored.",
         "The value \"%replacement1\" for key \"%replacement2\" is invalid, and has been ignored.",
         "The value \"%replacement1\" for key \"%replacement2\" was truncated to its numeric prefix.",
         "The value for key \"maximum-scale\" is out of bounds and the value has been clamped.",
         "The key \"target-densitydpi\" is not supported.",
     };
 
     return errors[errorCode];
 }
 
 static MessageLevel viewportErrorMessageLevel(ViewportErrorCode errorCode)
 {
     switch (errorCode) {
-    case InvalidKeyValuePairSeparatorError:
     case TruncatedViewportArgumentValueError:
     case TargetDensityDpiUnsupported:
         return WarningMessageLevel;
     case UnrecognizedViewportArgumentKeyError:
     case UnrecognizedViewportArgumentValueError:
     case MaximumScaleTooLargeError:
         return ErrorMessageLevel;
     }
 
     ASSERT_NOT_REACHED();
@@ skipping 10 matching lines @@
     if (!replacement1.isNull())
         message.replace("%replacement1", replacement1);
     if (!replacement2.isNull())
         message.replace("%replacement2", replacement2);
 
     // FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
     document->addConsoleMessage(RenderingMessageSource, viewportErrorMessageLevel(errorCode), message);
 }
 
 } // namespace WebCore