Use union type in ImageBitmapFactories.idl

third_party/WebKit/Source/core/frame/ImageBitmap.cpp

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/frame/ImageBitmap.h"
 
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/html/ImageData.h"
@@ skipping 169 matching lines @@
 }
 
 IntSize ImageBitmap::size() const
 {
     if (!m_image)
         return IntSize();
     ASSERT(m_image->width() > 0 && m_image->height() > 0);
     return IntSize(m_image->width(), m_image->height());
 }
 
+ScriptPromise ImageBitmap::createImageBitmap(ScriptState* scriptState, EventTarget& eventTarget, int sx, int sy, int sw, int sh, ExceptionState& exceptionState)
+{
+    if (!sw || !sh) {
+        exceptionState.throwDOMException(IndexSizeError, String::format("The source %s provided is 0.", sw ? "height" : "width"));
+        return ScriptPromise();
+    }
+    return ImageBitmapSource::fulfillImageBitmap(scriptState, create(this, IntRect(sx, sy, sw, sh)));
+}
+
 void ImageBitmap::notifyImageSourceChanged()
 {
 }
 
 PassRefPtr<Image> ImageBitmap::getSourceImageForCanvas(SourceImageStatus* status, AccelerationHint) const
 {
     *status = NormalSourceImageStatus;
     return m_image ? m_image : nullptr;
 }
 
 void ImageBitmap::adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const
 {
 }
 
 FloatSize ImageBitmap::elementSize() const
 {
     return FloatSize(width(), height());
 }
 
 DEFINE_TRACE(ImageBitmap)
 {
     ImageLoaderClient::trace(visitor);
 }
 
 } // namespace blink