WIP: Adjust externally allocated memory when ImageBitmap is transferred

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

Index: third_party/WebKit/Source/core/frame/ImageBitmap.cpp
diff --git a/third_party/WebKit/Source/core/frame/ImageBitmap.cpp b/third_party/WebKit/Source/core/frame/ImageBitmap.cpp
index 236964ce6e00a943dd13c332ca66afdc31bc8e5b..3a36e64bdc25be156a5cc2671bd9abee2ab43e44 100644
--- a/third_party/WebKit/Source/core/frame/ImageBitmap.cpp
+++ b/third_party/WebKit/Source/core/frame/ImageBitmap.cpp
@@ -1047,6 +1047,8 @@ ImageBitmap* ImageBitmap::Create(const void* pixel_data,
 void ImageBitmap::close() {
   if (!image_ || is_neutered_)
     return;
+  if (image_)
+    image_->UnregisterExternalAllocationWithCurrentContext();
   image_.Clear();
   is_neutered_ = true;
 }