DevTools: properly support targets in LiveEditSupport

Source/devtools/front_end/sdk/DefaultScriptMapping.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 105 matching lines @@
         this._projectDelegate.reset();
     },
 
     dispose: function()
     {
         this._workspace.removeProject(this._projectId);
     }
 }
 
 /**
+ * @param {string} projectId
+ * @returns {number}
+ */
+WebInspector.DefaultScriptMapping.targetIdFromProjectId = function(projectId)
+{
+    return projectId.startsWith("debugger:") ? parseInt(projectId.substring(9), 10) : -1;
+}
+
+/**
  * @constructor
  * @param {!WebInspector.Workspace} workspace
  * @param {string} id
  * @param {!WebInspector.projectTypes} type
  * @extends {WebInspector.ContentProviderBasedProjectDelegate}
  */
 WebInspector.DebuggerProjectDelegate = function(workspace, id, type)
 {
     WebInspector.ContentProviderBasedProjectDelegate.call(this, workspace, id, type);
 }
@@ skipping 15 matching lines @@
     {
         var contentProvider = script.isInlineScript() ? new WebInspector.ConcatenatedScriptsContentProvider([script]) : script;
         var splitURL = WebInspector.ParsedURL.splitURL(script.sourceURL);
         var name = splitURL[splitURL.length - 1];
         name = "VM" + script.scriptId + (name ? " " + name : "");
         return this.addContentProvider("", name, script.sourceURL, contentProvider);
     },
 
     __proto__: WebInspector.ContentProviderBasedProjectDelegate.prototype
 }