| Index: third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp | 
| diff --git a/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp b/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp | 
| index 7988132932fe846834bb47e377a9b4324e3b9a8f..9895e0ede6e0eecc168df6bfa626a2b2f85858ce 100644 | 
| --- a/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp | 
| +++ b/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp | 
| @@ -4,6 +4,7 @@ | 
|  | 
| #include "modules/canvas/HTMLCanvasElementModule.h" | 
|  | 
| +#include "core/dom/DOMNodeIds.h" | 
| #include "core/html/canvas/CanvasContextCreationAttributes.h" | 
| #include "core/html/canvas/CanvasRenderingContext.h" | 
|  | 
| @@ -24,7 +25,7 @@ OffscreenCanvas* HTMLCanvasElementModule::transferControlToOffscreen(HTMLCanvasE | 
| return nullptr; | 
| } | 
| OffscreenCanvas* offscreenCanvas = OffscreenCanvas::create(canvas.width(), canvas.height()); | 
| -    offscreenCanvas->setAssociatedCanvas(&canvas); | 
| +    offscreenCanvas->setAssociatedCanvasId(DOMNodeIds::idForNode(&canvas)); | 
| return offscreenCanvas; | 
| } | 
|  | 
|  |