Pass current value of attributes to WebDOMActivityLogger Setter logs.

Source/core/html/HTMLCanvasElement.idl

Index: Source/core/html/HTMLCanvasElement.idl
diff --git a/Source/core/html/HTMLCanvasElement.idl b/Source/core/html/HTMLCanvasElement.idl
index d4afad873d9c43b2c21bf30107891395a72f9bbf..f8821555f3c85b56c3bd91c299170a6c1451c5c4 100644
--- a/Source/core/html/HTMLCanvasElement.idl
+++ b/Source/core/html/HTMLCanvasElement.idl
@@ -32,5 +32,5 @@ interface HTMLCanvasElement : HTMLElement {
     [Custom, RaisesException] DOMString toDataURL([TreatNullAs=NullString, TreatUndefinedAs=NullString,Default=Undefined] optional DOMString type);
 
     // The custom binding is needed to handle context creation attributes.
-    [Custom, PerWorldBindings, ActivityLogging=ForIsolatedWorlds] any getContext([Default=Undefined] optional DOMString contextId);
+    [Custom, PerWorldBindings, LogActivity] any getContext([Default=Undefined] optional DOMString contextId);
 };