Revert of [Extensions] Finish freezing schema

extensions/renderer/resources/binding.js

Index: extensions/renderer/resources/binding.js
diff --git a/extensions/renderer/resources/binding.js b/extensions/renderer/resources/binding.js
index c5690907f4008ba5ce7492dcac854fcbd7e6e495..0eef6cf9031ce0e3a5fdaa278a1b9f99a2009f94 100644
--- a/extensions/renderer/resources/binding.js
+++ b/extensions/renderer/resources/binding.js
@@ -484,17 +484,7 @@
           return;
         }
 
-        // |value| is eventually added to |m|, the exposed API. Make copies
-        // of everything from the schema. (The schema is also frozen, so as long
-        // as we don't make any modifications, shallow copies are fine.)
-        var value;
-        if ($Array.isArray(propertyDef.value))
-          value = $Array.slice(propertyDef.value);
-        else if (typeof propertyDef.value === 'object')
-          value = $Object.assign({}, propertyDef.value);
-        else
-          value = propertyDef.value;
-
+        var value = propertyDef.value;
         if (value) {
           // Values may just have raw types as defined in the JSON, such
           // as "WINDOW_ID_NONE": { "value": -1 }. We handle this here.