Remove NOTIFICATION_EXTENSION_PAGE_ACTIONS_UPDATED

chrome/browser/extensions/api/extension_action/extension_action_api.h

 // Copyright (c) 2012 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_API_EXTENSION_ACTION_EXTENSION_ACTION_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_EXTENSION_ACTION_EXTENSION_ACTION_API_H_
 
 #include <string>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 26 matching lines @@
    public:
     // Called when there is a change to the given |extension_action|.
     // |web_contents| is the web contents that was affected, and
     // |browser_context| is the associated BrowserContext. (The latter is
     // included because ExtensionActionAPI is shared between normal and
     // incognito contexts, so |browser_context| may not equal
     // |browser_context_|.)
     virtual void OnExtensionActionUpdated(
         ExtensionAction* extension_action,
         content::WebContents* web_contents,
-        content::BrowserContext* browser_context) = 0;
+        content::BrowserContext* browser_context);
+
+    // Called when the page actions have been refreshed do to a possible change
+    // in count or visibility.
+    virtual void OnPageActionsUpdated(content::WebContents* web_contents);
 
     // Called when the ExtensionActionAPI is shutting down, giving observers a
     // chance to unregister themselves if there is not a definitive lifecycle.
-    virtual void OnExtensionActionAPIShuttingDown() {}
+    virtual void OnExtensionActionAPIShuttingDown();
 
    protected:
-    virtual ~Observer() {}
+    virtual ~Observer();
   };
 
   explicit ExtensionActionAPI(content::BrowserContext* context);
   virtual ~ExtensionActionAPI();
 
   // Convenience method to get the instance for a profile.
   static ExtensionActionAPI* Get(content::BrowserContext* context);
 
   static bool GetBrowserActionVisibility(const ExtensionPrefs* prefs,
                                          const std::string& extension_id);
@@ skipping 11 matching lines @@
 
   // Executes the action of the given |extension| on the |browser|'s active
   // web contents. If |grant_tab_permissions| is true, this will also grant
   // activeTab to the extension (so this should only be done if this is through
   // a direct user action). Returns the action that should be taken.
   ExtensionAction::ShowAction ExecuteExtensionAction(
       const Extension* extension,
       Browser* browser,
       bool grant_active_tab_permissions);
 
+  // Notifies that there has been a change in the given |extension_action|.
   void NotifyChange(ExtensionAction* extension_action,
                     content::WebContents* web_contents,
                     content::BrowserContext* browser_context);
 
   // Clears the values for all ExtensionActions for the tab associated with the
-  // given |web_contents|.
+  // given |web_contents| (and signals that page actions changed).
   void ClearAllValuesForTab(content::WebContents* web_contents);
 
+  // Notifies that the current set of page actions for |web_contents| has
+  // changed, and signals the browser to update.
+  void NotifyPageActionsChanged(content::WebContents* web_contents);
+
  private:
   friend class BrowserContextKeyedAPIFactory<ExtensionActionAPI>;
 
   // The DispatchEvent methods forward events to the |context|'s event router.
   void DispatchEventToExtension(content::BrowserContext* context,
                                 const std::string& extension_id,
                                 const std::string& event_name,
                                 scoped_ptr<base::ListValue> event_args);
 
   // Called when either a browser or page action is executed. Figures out which
@@ skipping 360 matching lines @@
 class PageActionGetPopupFunction
     : public extensions::ExtensionActionGetPopupFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("pageAction.getPopup", PAGEACTION_GETPOPUP)
 
  protected:
   virtual ~PageActionGetPopupFunction() {}
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_EXTENSION_ACTION_EXTENSION_ACTION_API_H_