RSS feed support (part 1), 2nd attempt

chrome/browser/tab_contents/tab_contents.h

 // Copyright (c) 2006-2008 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_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 
 #include "build/build_config.h"
 
 #include <string>
@@ skipping 55 matching lines @@
 // a different type of TabContents (see the TabContents::TypeForURL method),
 // the NavigationController makes the active TabContents inactive, notifies the
 // TabContentsDelegate that the TabContents is being replaced, and then
 // activates the new TabContents.
 class TabContents : public PageNavigator,
                     public NotificationObserver {
  public:
   // Flags passed to the TabContentsDelegate.NavigationStateChanged to tell it
   // what has changed. Combine them to update more than one thing.
   enum InvalidateTypes {
-    INVALIDATE_URL = 1,      // The URL has changed.
-    INVALIDATE_TITLE = 2,    // The title has changed.
-    INVALIDATE_FAVICON = 4,  // The favicon has changed.
-    INVALIDATE_LOAD = 8,     // The loading state has changed
+    INVALIDATE_URL = 1,        // The URL has changed.
+    INVALIDATE_TITLE = 2,      // The title has changed.
+    INVALIDATE_FAVICON = 4,    // The favicon has changed.
+    INVALIDATE_LOAD = 8,       // The loading state has changed.
+    INVALIDATE_FEEDLIST = 16,  // The Atom/RSS feed has changed.
 
     // Helper for forcing a refresh.
     INVALIDATE_EVERYTHING = 0xFFFFFFFF
   };
 
   static void RegisterUserPrefs(PrefService* prefs);
 
   // Factory -------------------------------------------------------------------
   // (implemented in tab_contents_factory.cc)
 
@@ skipping 460 matching lines @@
   // Delegates for InfoBars associated with this TabContents.
   std::vector<InfoBarDelegate*> infobar_delegates_;
 
   // See getter above.
   bool is_being_destroyed_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_