[dom] support iterable<> NodeList

Source/core/core.gypi

 {
     'includes': [
         'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/KeyframeEffect.idl',
             'animation/EffectModel.idl',
             'animation/AnimationEffectReadOnly.idl',
@@ skipping 2358 matching lines @@
             'dom/NodeChildRemovalTracker.cpp',
             'dom/NodeChildRemovalTracker.h',
             'dom/NodeComputedStyle.h',
             'dom/NodeFilter.cpp',
             'dom/NodeFilter.h',
             'dom/NodeFilterCondition.h',
             'dom/NodeIterator.cpp',
             'dom/NodeIterator.h',
             'dom/NodeIteratorBase.cpp',
             'dom/NodeIteratorBase.h',
+            'dom/NodeList.cpp',
             'dom/NodeListsNodeData.cpp',
             'dom/NodeListsNodeData.h',
             'dom/NodeRareData.cpp',
             'dom/NodeRareData.h',
             'dom/NodeTraversal.cpp',
             'dom/NodeTraversal.h',
             'dom/NodeWithIndex.h',
             'dom/NonDocumentTypeChildNode.h',
             'dom/NonElementParentNode.h',
             'dom/NthIndexCache.cpp',
@@ skipping 1487 matching lines @@
             'style/OutlineValueTest.cpp',
             'style/SVGComputedStyleTest.cpp',
             'svg/UnsafeSVGAttributeSanitizationTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }