Move dispatching and sending of the last extension specific messages out of TabContents and Rende...

chrome/browser/extensions/execute_code_in_tab_function.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXECUTE_CODE_IN_TAB_FUNCTION_H__
 #define CHROME_BROWSER_EXTENSIONS_EXECUTE_CODE_IN_TAB_FUNCTION_H__
 #pragma once
 
 #include <string>
 
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/common/extensions/extension_resource.h"
-#include "content/common/notification_observer.h"
-#include "content/common/notification_registrar.h"
+#include "content/browser/tab_contents/tab_contents_observer.h"
 
 // Implement API call tabs.executeScript and tabs.insertCSS.
 class ExecuteCodeInTabFunction : public AsyncExtensionFunction,
-                                 public NotificationObserver {
+                                 public TabContentsObserver {
  public:
   ExecuteCodeInTabFunction();
   virtual ~ExecuteCodeInTabFunction();
 
  private:
   virtual bool RunImpl();
 
-  virtual void Observe(NotificationType type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details);
+  // TabContentsObserver overrides.
+  virtual bool OnMessageReceived(const IPC::Message& message);
+
+  // Message handler.
+  void OnExecuteCodeFinished(int request_id, bool success);
 
   // Called when contents from the file whose path is specified in JSON
   // arguments has been loaded.
   void DidLoadFile(bool success, const std::string& data);
 
   // Run in UI thread.  Code string contains the code to be executed. Returns
   // true on success. If true is returned, this does an AddRef.
   bool Execute(const std::string& code_string);
 
-  NotificationRegistrar registrar_;
+  TabContentsObserver::Registrar registrar_;
 
   // Id of tab which executes code.
   int execute_tab_id_;
 
   // Contains extension resource built from path of file which is
   // specified in JSON arguments.
   ExtensionResource resource_;
 
   // If all_frames_ is true, script or CSS text would be injected
   // to all frames; Otherwise only injected to top main frame.
   bool all_frames_;
 };
 
 class TabsExecuteScriptFunction : public ExecuteCodeInTabFunction {
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.executeScript")
 };
 
 class TabsInsertCSSFunction : public ExecuteCodeInTabFunction {
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.insertCSS")
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXECUTE_CODE_IN_TAB_FUNCTION_H__