Add missing header files to GN files

third_party/WebKit/Source/core/dom/BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//third_party/WebKit/Source/core/core.gni")
 
 blink_core_sources("dom") {
   split_count = 5
 
   sources = [
     "AXObjectCache.cpp",
     "AXObjectCache.h",
     "AnimationWorkletProxyClient.h",
     "Attr.cpp",
     "Attr.h",
+    "Attribute.h",
     "AttributeCollection.h",
     "CDATASection.cpp",
     "CDATASection.h",
     "CSSSelectorWatch.cpp",
     "CSSSelectorWatch.h",
     "CharacterData.cpp",
+    "CharacterData.h",
     "ChildFrameDisconnector.cpp",
     "ChildFrameDisconnector.h",
     "ChildListMutationScope.cpp",
     "ChildListMutationScope.h",
+    "ChildNode.h",
     "ChildNodeList.cpp",
     "ChildNodeList.h",
     "ClassCollection.cpp",
     "ClassCollection.h",
     "ClientRect.cpp",
     "ClientRect.h",
     "ClientRectList.cpp",
     "ClientRectList.h",
     "CollectionIndexCache.h",
     "Comment.cpp",
@@ skipping 43 matching lines @@
     "DOMURL.h",
     "DOMURLUtils.cpp",
     "DOMURLUtils.h",
     "DOMURLUtilsReadOnly.cpp",
     "DOMURLUtilsReadOnly.h",
     "DatasetDOMStringMap.cpp",
     "DatasetDOMStringMap.h",
     "DecodedDataDocumentParser.cpp",
     "DecodedDataDocumentParser.h",
     "Document.cpp",
+    "Document.h",
     "DocumentEncodingData.cpp",
     "DocumentEncodingData.h",
     "DocumentFragment.cpp",
     "DocumentFragment.h",
     "DocumentFullscreen.cpp",
     "DocumentFullscreen.h",
     "DocumentInit.cpp",
     "DocumentInit.h",
     "DocumentLifecycle.cpp",
     "DocumentLifecycle.h",
@@ skipping 28 matching lines @@
     "ElementFullscreen.h",
     "ElementIntersectionObserverData.cpp",
     "ElementIntersectionObserverData.h",
     "ElementRareData.cpp",
     "ElementRareData.h",
     "ElementTraversal.h",
     "ElementVisibilityObserver.cpp",
     "ElementVisibilityObserver.h",
     "EmptyNodeList.cpp",
     "EmptyNodeList.h",
+    "ExceptionCode.h",
     "ExecutionContext.cpp",
     "ExecutionContext.h",
     "ExecutionContextTask.h",
     "FirstLetterPseudoElement.cpp",
     "FirstLetterPseudoElement.h",
     "FlexibleArrayBufferView.h",
     "FrameRequestCallback.h",
     "FrameRequestCallbackCollection.cpp",
     "FrameRequestCallbackCollection.h",
     "Fullscreen.cpp",
     "Fullscreen.h",
     "GlobalEventHandlers.h",
     "IconURL.cpp",
     "IconURL.h",
     "IdTargetObserver.cpp",
     "IdTargetObserver.h",
     "IdTargetObserverRegistry.cpp",
     "IdTargetObserverRegistry.h",
     "IdleDeadline.cpp",
     "IdleDeadline.h",
     "IdleRequestCallback.h",
     "IgnoreDestructiveWriteCountIncrementer.h",
     "IncrementLoadEventDelayCount.cpp",
     "IncrementLoadEventDelayCount.h",
     "IntersectionObservation.cpp",
     "IntersectionObservation.h",
     "IntersectionObserver.cpp",
     "IntersectionObserver.h",
+    "IntersectionObserverCallback.h",
     "IntersectionObserverController.cpp",
     "IntersectionObserverController.h",
     "IntersectionObserverEntry.cpp",
     "IntersectionObserverEntry.h",
     "Iterator.h",
     "LayoutTreeBuilder.cpp",
     "LayoutTreeBuilder.h",
     "LayoutTreeBuilderTraversal.cpp",
     "LayoutTreeBuilderTraversal.h",
     "LiveNodeList.cpp",
     "LiveNodeList.h",
     "LiveNodeListBase.cpp",
     "LiveNodeListBase.h",
     "MessageChannel.cpp",
     "MessageChannel.h",
     "MessagePort.cpp",
+    "MessagePort.h",
     "Modulator.cpp",
     "Modulator.h",
     "ModuleMap.cpp",
     "ModuleMap.h",
     "ModuleScript.cpp",
     "ModuleScript.h",
     "MutationCallback.h",
     "MutationObserver.cpp",
     "MutationObserver.h",
     "MutationObserverInterestGroup.cpp",
     "MutationObserverInterestGroup.h",
     "MutationObserverRegistration.cpp",
     "MutationObserverRegistration.h",
     "MutationRecord.cpp",
     "MutationRecord.h",
     "NameNodeList.cpp",
     "NameNodeList.h",
     "NamedNodeMap.cpp",
     "NamedNodeMap.h",
     "Node.cpp",
+    "Node.h",
     "NodeChildRemovalTracker.cpp",
     "NodeChildRemovalTracker.h",
     "NodeComputedStyle.h",
     "NodeFilter.cpp",
     "NodeFilter.h",
     "NodeFilterCondition.h",
     "NodeIterator.cpp",
     "NodeIterator.h",
     "NodeIteratorBase.cpp",
     "NodeIteratorBase.h",
+    "NodeList.h",
     "NodeListsNodeData.cpp",
     "NodeListsNodeData.h",
     "NodeRareData.cpp",
     "NodeRareData.h",
     "NodeTraversal.cpp",
     "NodeTraversal.h",
     "NodeWithIndex.h",
     "NonDocumentTypeChildNode.h",
     "NonElementParentNode.h",
     "NthIndexCache.cpp",
     "NthIndexCache.h",
     "ParentNode.h",
     "ParserContentPolicy.h",
     "PendingScript.cpp",
     "PendingScript.h",
     "PresentationAttributeStyle.cpp",
     "PresentationAttributeStyle.h",
     "ProcessingInstruction.cpp",
     "ProcessingInstruction.h",
     "PseudoElement.cpp",
+    "PseudoElement.h",
     "PseudoElementData.h",
     "QualifiedName.cpp",
     "QualifiedName.h",
     "Range.cpp",
+    "Range.h",
     "RangeBoundaryPoint.h",
     "RawDataDocumentParser.h",
     "RemoteSecurityContext.cpp",
     "RemoteSecurityContext.h",
     "ResizeObservation.cpp",
     "ResizeObservation.h",
     "ResizeObserver.cpp",
     "ResizeObserver.h",
     "ResizeObserverCallback.h",
     "ResizeObserverController.cpp",
@@ skipping 48 matching lines @@
     "SynchronousMutationNotifier.cpp",
     "SynchronousMutationNotifier.h",
     "SynchronousMutationObserver.cpp",
     "SynchronousMutationObserver.h",
     "TagCollection.cpp",
     "TagCollection.h",
     "TaskRunnerHelper.cpp",
     "TaskRunnerHelper.h",
     "TemplateContentDocumentFragment.h",
     "Text.cpp",
+    "Text.h",
     "TextLinkColors.cpp",
     "TextLinkColors.h",
     "ThrowOnDynamicMarkupInsertionCountIncrementer.h",
     "Touch.cpp",
     "Touch.h",
     "TouchList.cpp",
     "TouchList.h",
     "TransformSource.h",
     "TransformSourceLibxslt.cpp",
     "TreeScope.cpp",
@@ skipping 105 matching lines @@
     "shadow/SlotAssignment.h",
     "shadow/SlotScopedTraversal.cpp",
     "shadow/SlotScopedTraversal.h",
   ]
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }