Convert make_names and make_event_factory to use json5 config format.

third_party/WebKit/Source/core/events/EventAliases.json5

Index: third_party/WebKit/Source/core/events/EventAliases.json5
diff --git a/third_party/WebKit/Source/core/events/EventAliases.json5 b/third_party/WebKit/Source/core/events/EventAliases.json5
new file mode 100644
index 0000000000000000000000000000000000000000..a7642374002d14814ca4478153a255e1898ed0ff
--- /dev/null
+++ b/third_party/WebKit/Source/core/events/EventAliases.json5
@@ -0,0 +1,41 @@
+{
+  data: [
+    // Aliases
+    {
+      name: "WebKitAnimationEvent",
+      ImplementedAs: "AnimationEvent",
+    },
+    {
+      name: "Events",
+      ImplementedAs: "Event",
+    },
+    {
+      name: "HTMLEvents",
+      ImplementedAs: "Event",
+    },
+    {
+      name: "KeyboardEvents",
+      ImplementedAs: "KeyboardEvent",
+    },
+    {
+      name: "MouseEvents",
+      ImplementedAs: "MouseEvent",
+    },
+    {
+      name: "MutationEvents",
+      ImplementedAs: "MutationEvent",
+    },
+    {
+      name: "SVGEvents",
+      ImplementedAs: "Event",
+    },
+    {
+      name: "UIEvents",
+      ImplementedAs: "UIEvent",
+    },
+    {
+      name: "WebKitTransitionEvent",
+      ImplementedAs: "TransitionEvent",
+    },
+  ],
+}