DevTools: editing property values should wrap object literals similar to console

third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 34 matching lines @@
     this._executionContextById = new Map();
     this._executionContextComparator = SDK.ExecutionContext.comparator;
 
     if (Common.moduleSetting('customFormatters').get())
       this._agent.setCustomObjectFormatterEnabled(true);
 
     Common.moduleSetting('customFormatters').addChangeListener(this._customFormattersStateChanged.bind(this));
   }
 
   /**
+   * @param {string} code
+   * @return {string}
+   */
+  static wrapObjectLiteralExpressionIfNeeded(code) {
+    // Only parenthesize what appears to be an object literal.
+    if (!(/^\s*\{/.test(code) && /\}\s*$/.test(code)))
+      return code;
+
+    try {
+      // Check if the code can be interpreted as an expression.
+      Function('return ' + code + ';');
+
+      // No syntax error! Does it work parenthesized?
+      var wrappedCode = '(' + code + ')';
+      Function(wrappedCode);
+
+      return wrappedCode;
+    } catch (e) {
+      return code;
+    }
+  }
+
+  /**
    * @return {!SDK.DebuggerModel}
    */
   debuggerModel() {
     return /** @type {!SDK.DebuggerModel} */ (this.target().model(SDK.DebuggerModel));
   }
 
   /**
    * @return {!SDK.HeapProfilerModel}
    */
   heapProfilerModel() {
@@ skipping 807 matching lines @@
         this._type === 'wheel';
   }
 };
 
 /** @enum {string} */
 SDK.EventListener.Origin = {
   Raw: 'Raw',
   Framework: 'Framework',
   FrameworkUser: 'FrameworkUser'
 };