Implement Browser Actions extensions....

chrome/browser/views/location_bar_view.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_VIEWS_LOCATION_BAR_VIEW_H_
 #define CHROME_BROWSER_VIEWS_LOCATION_BAR_VIEW_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 329 matching lines @@
     DISALLOW_COPY_AND_ASSIGN(SecurityImageView);
   };
 
   // PageActionImageView is used to display the icon for a given PageAction
   // and notify the extension when the icon is clicked.
   class PageActionImageView : public LocationBarImageView,
                               public ImageLoadingTracker::Observer {
    public:
     PageActionImageView(LocationBarView* owner,
                         Profile* profile,
-                        const PageAction* page_action,
+                        const ContextualAction* page_action,
                         const BubblePositioner* bubble_positioner);
     virtual ~PageActionImageView();
 
     // Overridden from view for the mouse hovering.
     virtual bool OnMousePressed(const views::MouseEvent& event);
 
     // Overridden from LocationBarImageView.
     virtual void ShowInfoBubble();
 
     // Overridden from ImageLoadingTracker.
     virtual void OnImageLoaded(SkBitmap* image, size_t index);
 
     // Called to notify the PageAction that it should determine whether to be
     // visible or hidden. |contents| is the TabContents that is active, |url|
     // is the current page URL.
     void UpdateVisibility(TabContents* contents, GURL url);
 
    private:
     // The location bar view that owns us.
     LocationBarView* owner_;
 
     // The current profile (not owned by us).
     Profile* profile_;
 
     // The PageAction that this view represents. The PageAction is not owned by
     // us, it resides in the extension of this particular profile.
-    const PageAction* page_action_;
+    const ContextualAction* page_action_;
 
     // The icons representing different states for the page action.
     std::vector<SkBitmap> page_action_icons_;
 
     // The object that is waiting for the image loading to complete
     // asynchronously.
     ImageLoadingTracker* tracker_;
 
     // The tab id we are currently showing the icon for.
     int current_tab_id_;
@@ skipping 140 matching lines @@
   // The positioner that places the omnibox and info bubbles.
   const BubblePositioner* bubble_positioner_;
 
   // Storage of string needed for accessibility.
   std::wstring accessible_name_;
 
   DISALLOW_COPY_AND_ASSIGN(LocationBarView);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_LOCATION_BAR_VIEW_H_