DevTools: console evaluation should work when window.console is overriden.

Source/core/inspector/InjectedScriptSource.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2013 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 596 matching lines @@
      * @param {boolean} injectCommandLineAPI
      * @param {!Array.<!Object>=} scopeChain
      * @return {*}
      */
     _evaluateOn: function(evalFunction, object, objectGroup, expression, isEvalOnCallFrame, injectCommandLineAPI, scopeChain)
     {
         // Only install command line api object for the time of evaluation.
         // Surround the expression in with statements to inject our command line API so that
         // the window object properties still take more precedent than our API functions.
 
-        var injectScopeChain = scopeChain && scopeChain.length;
+        injectCommandLineAPI = injectCommandLineAPI && !("__commandLineAPI" in inspectedWindow);
+        var injectScopeChain = scopeChain && scopeChain.length && !("__scopeChainForEval" in inspectedWindow);
 
         try {
             var prefix = "";
             var suffix = "";
-            if (injectCommandLineAPI && inspectedWindow.console) {
-                inspectedWindow.console._commandLineAPI = new CommandLineAPI(this._commandLineAPIImpl, isEvalOnCallFrame ? object : null);
-                prefix = "with ((console && console._commandLineAPI) || { __proto__: null }) {";
+            if (injectCommandLineAPI) {
+                inspectedWindow.__commandLineAPI = new CommandLineAPI(this._commandLineAPIImpl, isEvalOnCallFrame ? object : null);
+                prefix = "with (__commandLineAPI || { __proto__: null }) {";
                 suffix = "}";
             }
-            if (injectScopeChain && inspectedWindow.console) {
-                inspectedWindow.console._scopeChainForEval = scopeChain;
+            if (injectScopeChain) {
+                inspectedWindow.__scopeChainForEval = scopeChain;
                 for (var i = 0; i < scopeChain.length; ++i) {
-                    prefix = "with ((console && console._scopeChainForEval[" + i + "]) || { __proto__: null }) {" + (suffix ? " " : "") + prefix;
+                    prefix = "with (__scopeChainForEval[" + i + "] || { __proto__: null }) {" + (suffix ? " " : "") + prefix;
                     if (suffix)
                         suffix += " }";
                     else
                         suffix = "}";
                 }
             }
 
             if (prefix)
                 expression = prefix + "\n" + expression + "\n" + suffix;
             var result = evalFunction.call(object, expression);
             if (objectGroup === "console")
                 this._lastResult = result;
             return result;
         } finally {
-            if (injectCommandLineAPI && inspectedWindow.console)
-                delete inspectedWindow.console._commandLineAPI;
-            if (injectScopeChain && inspectedWindow.console)
-                delete inspectedWindow.console._scopeChainForEval;
+            if (injectCommandLineAPI)
+                delete inspectedWindow.__commandLineAPI;
+            if (injectScopeChain)
+                delete inspectedWindow.__scopeChainForEval;
         }
     },
 
     /**
      * @param {?Object} callFrame
      * @param {number} asyncOrdinal
      * @return {!Array.<!InjectedScript.CallFrameProxy>|boolean}
      */
     wrapCallFrames: function(callFrame, asyncOrdinal)
     {
@@ skipping 894 matching lines @@
      */
     _logEvent: function(event)
     {
         inspectedWindow.console.log(event.type, event);
     }
 }
 
 injectedScript._commandLineAPIImpl = new CommandLineAPIImpl();
 return injectedScript;
 })