Index: Source/core/html/canvas/CanvasRenderingContext.h |
diff --git a/Source/core/html/canvas/CanvasRenderingContext.h b/Source/core/html/canvas/CanvasRenderingContext.h |
index b19a8e794b1fe65edc7ad643551ecaedc6907535..f9846f9330e565513c89fd5c2d5dd68744cd59f2 100644 |
--- a/Source/core/html/canvas/CanvasRenderingContext.h |
+++ b/Source/core/html/canvas/CanvasRenderingContext.h |
@@ -54,6 +54,7 @@ public: |
virtual bool is2d() const { return false; } |
virtual bool is3d() const { return false; } |
virtual bool isAccelerated() const { return false; } |
+ virtual bool hasAlpha() const { return true; } |
virtual void paintRenderingResultsToCanvas() {} |