Drop [ExperimentalCallbackFunction]

third_party/WebKit/Source/bindings/tests/idls/modules/TestInterface5.idl

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 // Test for interface extended attributes and special operations.
 // Also used as a target by TestObject
 
 enum TestEnumModules { "EnumModulesValue1", "EnumModulesValue2" };
-[ExperimentalCallbackFunction] callback VoidCallbackFunctionModules = void ();
+callback VoidCallbackFunctionModules = void ();
 
 [
     ActiveScriptWrappable,
     DependentLifetime,
     Custom=LegacyCallAsFunction,
     DoNotCheckConstants,
     ImplementedAs=TestInterface5Implementation,
     RuntimeEnabled=FeatureName,
     SetWrapperReferenceTo(TestInterface5 referencedName),
     Exposed=(Worker,Window),
@@ skipping 46 matching lines @@
     // Union types
     void voidMethodBooleanOrDOMStringArg((boolean or DOMString) arg);
     void voidMethodDoubleOrDOMStringArg((double or DOMString) arg);
 
     // Callback functions
     void voidMethodVoidExperimentalCallbackFunction(VoidExperimentalCallbackFunction arg);
     void voidMethodVoidCallbackFunctionModulesArg(VoidCallbackFunctionModules arg);
 
     iterable<any>;
 };