WIP: Adjust externally allocated memory when ImageBitmap is transferred

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 "core/frame/ImageBitmap.h"
 
 #include <memory>
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/html/ImageData.h"
@@ skipping 1029 matching lines @@
                                  bool is_image_bitmap_premultiplied,
                                  bool is_image_bitmap_origin_clean) {
   return new ImageBitmap(pixel_data, width, height,
                          is_image_bitmap_premultiplied,
                          is_image_bitmap_origin_clean);
 }
 
 void ImageBitmap::close() {
   if (!image_ || is_neutered_)
     return;
+  if (image_)
+    image_->UnregisterExternalAllocationWithCurrentContext();
   image_.Clear();
   is_neutered_ = true;
 }
 
 // static
 ImageBitmap* ImageBitmap::Take(ScriptPromiseResolver*, sk_sp<SkImage> image) {
   return ImageBitmap::Create(StaticBitmapImage::Create(std::move(image)));
 }
 
 PassRefPtr<Uint8Array> ImageBitmap::CopyBitmapData(AlphaDisposition alpha_op,
@@ skipping 68 matching lines @@
 void ImageBitmap::AdjustDrawRects(FloatRect* src_rect,
                                   FloatRect* dst_rect) const {}
 
 FloatSize ImageBitmap::ElementSize(const FloatSize&) const {
   return FloatSize(width(), height());
 }
 
 DEFINE_TRACE(ImageBitmap) {}
 
 }  // namespace blink