DevTools: get rid of WebInspector.cssModel, use target models instead

Source/devtools/front_end/extensions/ExtensionServer.js

 /*
  * Copyright (C) 2011 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 376 matching lines @@
             else
                 result = { value: resultPayload.value };
 
             this._dispatchCallback(message.requestId, port, result);
         }
         return this.evaluate(message.expression, true, true, message.evaluateOptions, port._extensionOrigin, callback.bind(this));
     },
 
     _onGetConsoleMessages: function()
     {
-        return WebInspector.consoleModel.messages.map(this._makeConsoleMessage);
+        return WebInspector.multitargetConsoleModel.messages().map(this._makeConsoleMessage);
     },
 
     _onAddConsoleMessage: function(message)
     {
         function convertSeverity(level)
         {
             switch (level) {
                 case WebInspector.extensionAPI.console.Severity.Log:
                     return WebInspector.ConsoleMessage.MessageLevel.Log;
                 case WebInspector.extensionAPI.console.Severity.Warning:
                     return WebInspector.ConsoleMessage.MessageLevel.Warning;
                 case WebInspector.extensionAPI.console.Severity.Error:
                     return WebInspector.ConsoleMessage.MessageLevel.Error;
                 case WebInspector.extensionAPI.console.Severity.Debug:
                     return WebInspector.ConsoleMessage.MessageLevel.Debug;
             }
         }
         var level = convertSeverity(message.severity);
         if (!level)
             return this._status.E_BADARG("message.severity", message.severity);
 
+        var mainTarget = WebInspector.targetManager.mainTarget();
         var consoleMessage = new WebInspector.ConsoleMessage(
-            WebInspector.consoleModel.target(),
+            mainTarget,
             WebInspector.ConsoleMessage.MessageSource.JS,
             level,
             message.text,
             WebInspector.ConsoleMessage.MessageType.Log,
             message.url,
             message.line);
-        WebInspector.consoleModel.addMessage(consoleMessage);
+        mainTarget.consoleModel.addMessage(consoleMessage);
     },
 
     _makeConsoleMessage: function(message)
     {
         function convertLevel(level)
         {
             if (!level)
                 return;
             switch (level) {
                 case WebInspector.ConsoleMessage.MessageLevel.Log:
@@ skipping 639 matching lines @@
 /**
  * @typedef {{code: string, description: string, details: !Array.<*>}}
  */
 WebInspector.ExtensionStatus.Record;
 
 WebInspector.extensionAPI = {};
 defineCommonExtensionSymbols(WebInspector.extensionAPI);
 
 importScript("ExtensionPanel.js");
 importScript("ExtensionView.js");