DevTools: DevTools opened for an old version of chrome or webview can't record cpu/heap profile.

Source/devtools/front_end/bindings/TempFile.js

 /*
  * 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:
  *
  *     * 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 345 matching lines @@
         if (this._tempFile)
             this._tempFile.remove();
     }
 }
 
 /**
  * @constructor
  */
 WebInspector.TempStorageCleaner = function()
 {
-    this._worker = Runtime.startSharedWorker("temp_storage_shared_worker", "TempStorage");
-    this._worker.onerror = this._handleError.bind(this);
-    this._callbacks = [];
-    this._worker.port.onmessage = this._handleMessage.bind(this);
-    this._worker.port.onerror = this._handleError.bind(this);
+    try {
+        this._worker = Runtime.startSharedWorker("temp_storage_shared_worker", "TempStorageCleaner");
+        this._worker.onerror = this._handleError.bind(this);
+        this._callbacks = [];
+        this._worker.port.onmessage = this._handleMessage.bind(this);
+        this._worker.port.onerror = this._handleError.bind(this);
+    } catch (e) {
+        if (e.name === "URLMismatchError")
+            console.log("Shared worker wasn't started due to url difference. " + e);
+        else
+            throw e;
+    }
 }
 
 WebInspector.TempStorageCleaner.prototype = {
     /**
      * @param {!function()} callback
      */
     ensureStorageCleared: function(callback)
     {
         if (this._callbacks)
             this._callbacks.push(callback);
@@ skipping 27 matching lines @@
 
 /**
  * @param {!function()} callback
  */
 WebInspector.TempFile._ensureTempStorageCleared = function(callback)
 {
     if (!WebInspector.TempFile._storageCleaner)
         WebInspector.TempFile._storageCleaner = new WebInspector.TempStorageCleaner();
     WebInspector.TempFile._storageCleaner.ensureStorageCleared(callback);
 }