Add input element values to DOMSnapshot command

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 915618258fa4d93a0e8559a489e09e094e952f55..dc8c7e30830cbc742047f46c0c9fd52b3a4a5bb5 100644
--- a/third_party/WebKit/Source/core/inspector/browser_protocol.json
+++ b/third_party/WebKit/Source/core/inspector/browser_protocol.json
@@ -3375,6 +3375,10 @@
                     { "name": "nodeType", "type": "integer", "description": "<code>Node</code>'s nodeType." },
                     { "name": "nodeName", "type": "string", "description": "<code>Node</code>'s nodeName." },
                     { "name": "nodeValue", "type": "string", "description": "<code>Node</code>'s nodeValue." },
+                    { "name": "textValue", "type": "string", "optional": true, "description": "Only set for textarea elements, contains the text value." },
+                    { "name": "inputValue", "type": "string", "optional": true, "description": "Only set for input elements, contains the input's associated text value." },
+                    { "name": "inputChecked", "type": "boolean", "optional": true, "description": "Only set for radio and checkbox input elements, indicates if the element has been checked" },
+                    { "name": "optionSelected", "type": "boolean", "optional": true, "description": "Only set for option elements, indicates if the element has been selected" },
                     { "name": "backendNodeId", "$ref": "DOM.BackendNodeId", "description": "<code>Node</code>'s id, corresponds to DOM.Node.backendNodeId." },
                     { "name": "childNodeIndexes", "type": "array", "items": { "type": "integer" }, "optional": true, "description": "The indexes of the node's child nodes in the <code>domNodes</code> array returned by <code>getSnapshot</code>, if any." },
                     { "name": "attributes", "type": "array", "items": { "$ref": "NameValue" }, "optional": true, "description": "Attributes of an <code>Element</code> node." },