Index: third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp |
diff --git a/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp |
index d8fc5499e8353cd8b66d41b603d308331e675cc1..4a60e82c253a096955c994eb4a863490d0a88732 100644 |
--- a/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp |
+++ b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp |
@@ -41,10 +41,20 @@ void OffscreenCanvasRenderingContext2D::setOriginTainted() |
m_originClean = false; |
} |
-bool OffscreenCanvasRenderingContext2D::wouldTaintOrigin(CanvasImageSource* source) |
-{ |
+bool OffscreenCanvasRenderingContext2D::wouldTaintOrigin(CanvasImageSource* source, ScriptState* scriptState) |
+{ |
+ if (scriptState->getExecutionContext()->isWorkerGlobalScope()) { |
+ // Currently, we only support passing in ImageBitmap as source image in |
+ // drawImage() or createPattern() in a OffscreenCanvas2d in worker. |
+ ASSERT(source->isImageBitmap()); |
+ // ImageBitmap wouldTaintOrigin doesn't consider destinationSecurityOrigin. |
+ return source->wouldTaintOrigin(nullptr); |
+ } |
+ |
+ // TODO(crbug.com/606925): implement wouldTaintOrigin for OffscreenCanvas2d |
+ // on main thread |
NOTIMPLEMENTED(); |
- return false; |
+ return true; |
} |
int OffscreenCanvasRenderingContext2D::width() const |