DevTools: Address empty query parameters being displayed fugly.

third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.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 841 matching lines @@
 
     /**
      * @param {string} queryString
      * @return {!Array.<!WebInspector.NetworkRequest.NameValue>}
      */
     _parseParameters: function(queryString)
     {
         function parseNameValue(pair)
         {
             var position = pair.indexOf("=");
-            if (position === -1)
+            if (position === -1) {
+                if (pair === "") {
+                    return {name: "(empty)", value: "(empty)"};

[caseq, 2016/04/06 18:36:43]

I'd rather say we could skip these, but if the consensus is there's value of it
being shown, let's move the logic from the model level to the UI level and make
sure this "(empty)" gets displayed differently (e.g. subdued) from the actual
names obtained from the query string.

+                }
                 return {name: pair, value: ""};
-            else
+            }
+            else {
                 return {name: pair.substring(0, position), value: pair.substring(position + 1)};
+            }
         }
         return queryString.split("&").map(parseNameValue);
     },
 
     /**
      * @param {!Array.<!WebInspector.NetworkRequest.NameValue>} headers
      * @param {string} headerName
      * @return {string|undefined}
      */
     _headerValue: function(headers, headerName)
@@ skipping 310 matching lines @@
         this.dispatchEventToListeners(WebInspector.NetworkRequest.Events.EventSourceMessageAdded, message);
     },
 
     replayXHR: function()
     {
         this.target().networkAgent().replayXHR(this.requestId);
     },
 
     __proto__: WebInspector.SDKObject.prototype
 }