Consolidate implementation of ImageBitmapRenderingContext

third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.cpp

Index: third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.cpp
diff --git a/third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.cpp b/third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.cpp
index 83227e68047d8112b0a028632c1852916ea0ce21..f73c6f8756e1cdce3c7499d270b833d1a088e5aa 100644
--- a/third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.cpp
+++ b/third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.cpp
@@ -27,12 +27,19 @@ void ImageBitmapRenderingContext::setCanvasGetContextResult(
 }
 
 void ImageBitmapRenderingContext::transferFromImageBitmap(
-    ImageBitmap* imageBitmap) {
+    ImageBitmap* imageBitmap,
+    ExceptionState& exceptionState) {
   if (!imageBitmap) {
     m_image.release();
     return;
   }
 
+  if (imageBitmap->isNeutered()) {
+    exceptionState.throwDOMException(InvalidStateError,
+                                     "The input ImageBitmap has been detached");
+    return;
+  }
+
   m_image = imageBitmap->bitmapImage();
   if (!m_image)
     return;
@@ -53,6 +60,7 @@ void ImageBitmapRenderingContext::transferFromImageBitmap(
   }
   canvas()->didDraw(
       FloatRect(FloatPoint(), FloatSize(m_image->width(), m_image->height())));
+  imageBitmap->close();
 }
 
 bool ImageBitmapRenderingContext::paint(GraphicsContext& gc, const IntRect& r) {