DevTools: introduce protocol::Value, baseline for hierarchical data in remote debugging protocol.

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

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 2024 matching lines @@
     if (!layoutObject) {
         *errorString = "No layout object for node, perhaps orphan or hidden node";
         return;
     }
     while (layoutObject && !layoutObject->isDocumentElement() && !layoutObject->isRelayoutBoundaryForInspector())
         layoutObject = layoutObject->container();
     Node* resultNode = layoutObject ? layoutObject->generatingNode() : node->ownerDocument();
     *relayoutBoundaryNodeId = pushNodePathToFrontend(resultNode);
 }
 
-void InspectorDOMAgent::getHighlightObjectForTest(ErrorString* errorString, int nodeId, RefPtr<JSONObject>* result)
+void InspectorDOMAgent::getHighlightObjectForTest(ErrorString* errorString, int nodeId, RefPtr<protocol::DictionaryValue>* result)
 {
     Node* node = assertNode(errorString, nodeId);
     if (!node)
         return;
     InspectorHighlight highlight(node, InspectorHighlight::defaultConfig(), true);
-    *result = highlight.asJSONObject();
+    *result = highlight.asProtocolValue();
 }
 
 PassOwnPtr<protocol::Runtime::RemoteObject> InspectorDOMAgent::resolveNode(Node* node, const String& objectGroup)
 {
     Document* document = node->isDocumentNode() ? &node->document() : node->ownerDocument();
     LocalFrame* frame = document ? document->frame() : nullptr;
     if (!frame)
         return nullptr;
 
     ScriptState* scriptState = ScriptState::forMainWorld(frame);
@@ skipping 26 matching lines @@
     visitor->trace(m_document);
     visitor->trace(m_revalidateTask);
     visitor->trace(m_searchResults);
 #endif
     visitor->trace(m_history);
     visitor->trace(m_domEditor);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink