Adds DOM.getFlatDocument which returns an array of nodes

third_party/WebKit/Source/core/inspector/browser_protocol.json

Index: third_party/WebKit/Source/core/inspector/browser_protocol.json
diff --git a/third_party/WebKit/Source/core/inspector/browser_protocol.json b/third_party/WebKit/Source/core/inspector/browser_protocol.json
index 6e6306437c8f50855aad66976b3649ac0505ffe7..81c4071b2c243561a4742a6c711e0e670547cc5b 100644
--- a/third_party/WebKit/Source/core/inspector/browser_protocol.json
+++ b/third_party/WebKit/Source/core/inspector/browser_protocol.json
@@ -2030,6 +2030,7 @@
                 "type": "object",
                 "properties": [
                     { "name": "nodeId", "$ref": "NodeId", "description": "Node identifier that is passed into the rest of the DOM messages as the <code>nodeId</code>. Backend will only push node with given <code>id</code> once. It is aware of all requested nodes and will only fire DOM events for nodes known to the client." },
+                    { "name": "parentId", "$ref": "NodeId", "optional": true, "description": "The id of the parent node if any.", "experimental": true },
                     { "name": "backendNodeId", "$ref": "BackendNodeId", "description": "The BackendNodeId for this node.", "experimental": true },
                     { "name": "nodeType", "type": "integer", "description": "<code>Node</code>'s nodeType." },
                     { "name": "nodeName", "type": "string", "description": "<code>Node</code>'s nodeName." },
@@ -2168,6 +2169,17 @@
                 "description": "Returns the root DOM node (and optionally the subtree) to the caller."
             },
             {
+                "name": "getFlattenedDocument",
+                "parameters": [
+                    { "name": "depth", "type": "integer", "optional": true, "description": "The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the entire subtree or provide an integer larger than 0.", "experimental": true },
+                    { "name": "pierce", "type": "boolean", "optional": true, "description": "Whether or not iframes and shadow roots should be traversed when returning the subtree (default is false).", "experimental": true }
+                ],
+                "returns": [
+                    { "name": "nodes", "type": "array", "items": { "$ref": "Node" }, "description": "Resulting node." }
+                ],
+                "description": "Returns the root DOM node (and optionally the subtree) to the caller."
+            },
+            {
                 "name": "collectClassNamesFromSubtree",
                 "parameters": [
                     { "name": "nodeId", "$ref": "NodeId", "description": "Id of the node to collect class names." }