Fix a gcc 4.3 warning in page_action.h....

chrome/common/page_action.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_COMMON_PAGE_ACTION_H_
 #define CHROME_COMMON_PAGE_ACTION_H_
 
 #include <string>
 #include <map>
 
 #include "base/file_path.h"
 #include "googleurl/src/gurl.h"
 
 class PageAction {
  public:
   PageAction();
   virtual ~PageAction();
 
-  typedef enum PageActionType {
+  typedef enum {
     PERMANENT = 0,
     TAB = 1,
-  };
+  } PageActionType;
 
   std::string id() const { return id_; }
   void set_id(std::string id) { id_ = id; }
 
   PageActionType type() const { return type_; }
   void set_type(PageActionType type) { type_ = type; }
 
   std::string extension_id() const { return extension_id_; }
   void set_extension_id(std::string extension_id) {
     extension_id_ = extension_id;
@@ skipping 40 matching lines @@
   // The url of the page which the PageAction is currently active in.
   GURL active_url_;
 
   // The tab ID for which the PageAction is currently active in.
   int active_tab_id_;
 };
 
 typedef std::map<std::string, PageAction*> PageActionMap;
 
 #endif  // CHROME_COMMON_PAGE_ACTION_H_