Fix disappearing page actions bug.

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.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_UI_COCOA_LOCATION_BAR_LOCATION_BAR_VIEW_MAC_H_
 #define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_LOCATION_BAR_VIEW_MAC_H_
 
 #include <string>
 
 #import <Cocoa/Cocoa.h>
@@ skipping 48 matching lines @@
   void ShowFirstRunBubble() override;
   GURL GetDestinationURL() const override;
   WindowOpenDisposition GetWindowOpenDisposition() const override;
   ui::PageTransition GetPageTransition() const override;
   void AcceptInput() override;
   void FocusLocation(bool select_all) override;
   void FocusSearch() override;
   void UpdateContentSettingsIcons() override;
   void UpdateManagePasswordsIconAndBubble() override;
   void UpdatePageActions() override;
-  void InvalidatePageActions() override;
   void UpdateBookmarkStarVisibility() override;
   bool ShowPageActionPopup(const extensions::Extension* extension,
                            bool grant_active_tab) override;
   void UpdateOpenPDFInReaderPrompt() override;
   void UpdateGeneratedCreditCardView() override;
   void SaveStateToContents(content::WebContents* contents) override;
   void Revert() override;
   const OmniboxView* GetOmniboxView() const override;
   OmniboxView* GetOmniboxView() override;
   LocationBarTesting* GetLocationBarForTesting() override;
@@ skipping 116 matching lines @@
 
   // Clear the page-action decorations.
   void DeletePageActionDecorations();
 
   void OnEditBookmarksEnabledChanged();
 
   // Re-generate the page-action decorations from the profile's
   // extension service.
   void RefreshPageActionDecorations();
 
+  // Whether the page actions represented by |page_action_decorations_| differ
+  // in ordering or value from |page_actions|.
+  bool PageActionsDiffer(
+      const std::vector<ExtensionAction*>& page_actions) const;
+
   // Updates visibility of the content settings icons based on the current
   // tab contents state.
   bool RefreshContentSettingsDecorations();
 
   void ShowFirstRunBubbleInternal();
 
   // Updates the translate decoration in the omnibox with the current translate
   // state.
   void UpdateTranslateDecoration();
 
@@ skipping 22 matching lines @@
   // Bookmark star right of page actions.
   scoped_ptr<StarDecoration> star_decoration_;
 
   // Translate icon at the end of the ominibox.
   scoped_ptr<TranslateDecoration> translate_decoration_;
 
   // A zoom icon at the end of the omnibox, which shows at non-standard zoom
   // levels.
   scoped_ptr<ZoomDecoration> zoom_decoration_;
 
-  // The installed page actions.
-  std::vector<ExtensionAction*> page_actions_;
-
   // Decorations for the installed Page Actions.
   ScopedVector<PageActionDecoration> page_action_decorations_;
 
   // The content blocked decorations.
   ScopedVector<ContentSettingDecoration> content_setting_decorations_;
 
   // Keyword hint decoration displayed on the right-hand side.
   scoped_ptr<KeywordHintDecoration> keyword_hint_decoration_;
 
   // The voice search icon.
@@ skipping 16 matching lines @@
   // Used to schedule a task for the first run info bubble.
   base::WeakPtrFactory<LocationBarViewMac> weak_ptr_factory_;
 
   // Used to change the visibility of the star decoration.
   BooleanPrefMember edit_bookmarks_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(LocationBarViewMac);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_LOCATION_BAR_VIEW_MAC_H_