Make pair iterators inherit from %IteratorPrototype%.

third_party/WebKit/Source/bindings/tests/idls/core/TestInterface.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 19 matching lines @@
 
 // Test for interface extended attributes and special operations.
 // Also used as a target by TestObject
 
 [
     ActiveScriptWrappable,
     DependentLifetime,
     Custom=LegacyCallAsFunction,
     DoNotCheckConstants,
     ImplementedAs=TestInterfaceImplementation,
-    Iterable,
     RuntimeEnabled=FeatureName,
     Exposed=(Worker,Window),
 ] interface TestInterface : TestInterfaceEmpty {
     // members needed to test [ImplementedAs], as this affect attribute
     // configuration and method configuration
     const unsigned long UNSIGNED_LONG = 0;
     [Reflect=CONST_CPP] const short CONST_JAVASCRIPT = 1;
 
     [Measure] attribute TestInterface testInterfaceAttribute; // Self-referential interface type with [ImplementedAs]
     attribute TestInterfaceConstructor testInterfaceConstructorAttribute;
@@ skipping 54 matching lines @@
     [Exposed=(Window,ServiceWorker)] void windowAndServiceWorkerExposedMethod();
 
     void voidMethodPartialOverload();
     void voidMethodPartialOverload(double doubleArg);
     static void staticVoidMethodPartialOverload();
 
     Promise promiseMethodPartialOverload();
     Promise promiseMethodPartialOverload(Window window);
     static Promise staticPromiseMethodPartialOverload();
 
+    iterable<ByteString, long>;
+
     [LenientThis] attribute any lenientThisAttribute;
 
     [LegacyInterfaceTypeChecking] void legacyInterfaceTypeCheckingMethod(TestInterfaceEmpty testInterfaceEmptyArg);
 
     [SecureContext] void secureContextMethod();
     [SecureContext] attribute bool secureContextAttribute;
     [SecureContext,RuntimeEnabled=SecureFeature] void secureContextRuntimeEnabledMethod();
     [SecureContext,RuntimeEnabled=SecureFeature] attribute bool secureContextRuntimeEnabledAttribute;
     [SecureContext,Exposed=Window] void secureContextWindowExposedMethod();
     [SecureContext,Exposed=Window] attribute bool secureContextWindowExposedAttribute;
     [SecureContext,Exposed=Worker] void secureContextWorkerExposedMethod();
     [SecureContext,Exposed=Worker] attribute bool secureContextWorkerExposedAttribute;
     [SecureContext,Exposed=Window,RuntimeEnabled=SecureFeature] void secureContextWindowExposedRuntimeEnabledMethod();
     [SecureContext,Exposed=Window,RuntimeEnabled=SecureFeature] attribute bool secureContextWindowExposedRuntimeEnabledAttribute;
     [SecureContext,Exposed=Worker,RuntimeEnabled=SecureFeature] void secureContextWorkerExposedRuntimeEnabledMethod();
     [SecureContext,Exposed=Worker,RuntimeEnabled=SecureFeature] attribute bool secureContextWorkerExposedRuntimeEnabledAttribute;
 };
 
 TestInterface implements TestImplements;
 // TestInterface implements TestImplements2; // at implement*ed* interface
 TestInterface implements TestImplements3;