Use transposedSize in more places

Source/platform/graphics/ImageSource.cpp

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp.toker@collabora.co.uk>
  * Copyright (C) 2008, 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 67 matching lines @@
     return frameSizeAtIndex(0, shouldRespectOrientation);
 }
 
 IntSize ImageSource::frameSizeAtIndex(size_t index, RespectImageOrientationEnum shouldRespectOrientation) const
 {
     if (!m_decoder)
         return IntSize();
 
     IntSize size = m_decoder->frameSizeAtIndex(index);
     if ((shouldRespectOrientation == RespectImageOrientation) && m_decoder->orientationAtIndex(index).usesWidthAsHeight())
-        return IntSize(size.height(), size.width());
+        return size.transposedSize();
 
     return size;
 }
 
 bool ImageSource::getHotSpot(IntPoint& hotSpot) const
 {
     return m_decoder ? m_decoder->hotSpot(hotSpot) : false;
 }
 
 int ImageSource::repetitionCount()
@@ skipping 48 matching lines @@
 {
     return m_decoder && m_decoder->frameIsCachedAndLazyDecodedAtIndex(index);
 }
 
 size_t ImageSource::frameBytesAtIndex(size_t index) const
 {
     return m_decoder ? m_decoder->frameBytesAtIndex(index) : 0;
 }
 
 } // namespace blink