Roll third_party/inspector_protocol to 4ad35c45aca9834b67ec2cb152c816ea1b7ceb48

third_party/inspector_protocol/lib/Values_h.template

Index: third_party/inspector_protocol/lib/Values_h.template
diff --git a/third_party/inspector_protocol/lib/Values_h.template b/third_party/inspector_protocol/lib/Values_h.template
index 8e0d555d213998bd9642d96158b925b0062320a0..f71e34dd8a374844cb5097059775404711251e44 100644
--- a/third_party/inspector_protocol/lib/Values_h.template
+++ b/third_party/inspector_protocol/lib/Values_h.template
@@ -17,7 +17,7 @@ class ListValue;
 class DictionaryValue;
 class Value;
 
-class {{config.lib.export_macro}} Value {
+class {{config.lib.export_macro}} Value : public Serializable {
     PROTOCOL_DISALLOW_COPY(Value);
 public:
     virtual ~Value() { }
@@ -51,6 +51,7 @@ public:
     String toJSONString() const;
     virtual void writeJSON(StringBuilder* output) const;
     virtual std::unique_ptr<Value> clone() const;
+    String serialize() { return toJSONString(); }
 
 protected:
     Value() : m_type(TypeNull) { }