Adds DOM.getFlatDocument which returns an array of nodes

third_party/WebKit/Source/core/inspector/InspectorDOMAgent.h

Index: third_party/WebKit/Source/core/inspector/InspectorDOMAgent.h
diff --git a/third_party/WebKit/Source/core/inspector/InspectorDOMAgent.h b/third_party/WebKit/Source/core/inspector/InspectorDOMAgent.h
index fe54d8c8b6631e3a21c3d9b75b7734f4dfc53d99..30cac77cc40ec1dd2c87ece1ffc0f9491b91f3fa 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorDOMAgent.h
+++ b/third_party/WebKit/Source/core/inspector/InspectorDOMAgent.h
@@ -118,6 +118,10 @@ class CORE_EXPORT InspectorDOMAgent final
   Response getDocument(Maybe<int> depth,
                        Maybe<bool> traverseFrames,
                        std::unique_ptr<protocol::DOM::Node>* root) override;
+  Response getFlatDocument(
+      Maybe<int> depth,
+      Maybe<bool> pierce,
+      std::unique_ptr<protocol::Array<protocol::DOM::Node>>* nodes) override;
   Response collectClassNamesFromSubtree(
       int nodeId,
       std::unique_ptr<protocol::Array<String>>* classNames) override;
@@ -295,6 +299,11 @@ class CORE_EXPORT InspectorDOMAgent final
                                                           int depth,
                                                           bool traverseFrames,
                                                           NodeToIdMap*);
+  void buildFlatObjectsForNode(Node*,
+                               int depth,
+                               bool pierce,
+                               NodeToIdMap*,
+                               protocol::Array<protocol::DOM::Node>* result);
   std::unique_ptr<protocol::Array<String>> buildArrayForElementAttributes(
       Element*);
   std::unique_ptr<protocol::Array<protocol::DOM::Node>>
@@ -322,6 +331,8 @@ class CORE_EXPORT InspectorDOMAgent final
 
   Member<InspectorRevalidateDOMTask> revalidateTask();
 
+  std::unique_ptr<protocol::DOM::Node> minimalCopy(protocol::DOM::Node*) const;
+
   v8::Isolate* m_isolate;
   Member<InspectedFrames> m_inspectedFrames;
   v8_inspector::V8InspectorSession* m_v8Session;