Drop [LegacyInterfaceTypeChecking] for URL.createObjectURL(blob)

third_party/WebKit/Source/core/dom/URL.idl

Index: third_party/WebKit/Source/core/dom/URL.idl
diff --git a/third_party/WebKit/Source/core/dom/URL.idl b/third_party/WebKit/Source/core/dom/URL.idl
index a4e75fc48bc2c1b4a0522326d900da491fe13c80..f5df0bb7b387e3645223e4be2a660a8f5288588d 100644
--- a/third_party/WebKit/Source/core/dom/URL.idl
+++ b/third_party/WebKit/Source/core/dom/URL.idl
@@ -41,8 +41,8 @@
     // TODO(philipj): This should be in a partial interface definition:
     // File API
     // https://w3c.github.io/FileAPI/#creating-revoking
-    // TODO(philipj): Neither the return value nor the argument should be nullable.
-    [RaisesException, CallWith=ExecutionContext, LegacyInterfaceTypeChecking] static DOMString? createObjectURL(Blob? blob);
+    // TODO(philipj): The return type should not be nullable.
+    [RaisesException, CallWith=ExecutionContext] static DOMString? createObjectURL(Blob blob);
     [CallWith=ExecutionContext] static void revokeObjectURL(DOMString url);
 };