Flesh out more extensions tab api (added removeTab, updateTab)

chrome/browser/extensions/extension_tabs_module.h

 // Copyright (c) 2009 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_EXTENSION_TABS_MODULE_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TABS_MODULE_H__
 
 #include "chrome/browser/extensions/extension_function.h"
 
 class GetTabsForWindowFunction : public SyncExtensionFunction {
   virtual bool RunImpl();
 };
 class CreateTabFunction : public SyncExtensionFunction {
   virtual bool RunImpl();
 };
+class GetTabFunction : public SyncExtensionFunction {
+  virtual bool RunImpl();
+};
+class UpdateTabFunction : public SyncExtensionFunction {
+  virtual bool RunImpl();
+};
+class RemoveTabFunction : public SyncExtensionFunction {
+  virtual bool RunImpl();
+};
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TABS_MODULE_H__