Implement page action popups.

chrome/browser/views/location_bar_view.h

Index: chrome/browser/views/location_bar_view.h
diff --git a/chrome/browser/views/location_bar_view.h b/chrome/browser/views/location_bar_view.h
index 1bae7e79884b57fdd3169fc144ff1bd438f1aa03..8bac24255f6276eeb910989011012f119d886188 100644
--- a/chrome/browser/views/location_bar_view.h
+++ b/chrome/browser/views/location_bar_view.h
@@ -158,6 +158,9 @@ class LocationBarView : public LocationBar,
   // Overridden from LocationBarTesting:
   virtual int PageActionCount() { return page_action_views_.size(); }
   virtual int PageActionVisibleCount();
+  virtual ExtensionAction* GetPageAction(size_t index);
+  virtual ExtensionAction* GetVisiblePageAction(size_t index);
+  virtual void TestPageActionPressed(size_t index);
 
   static const int kVertMargin;
 
@@ -357,7 +360,8 @@ class LocationBarView : public LocationBar,
 
     int current_tab_id() { return current_tab_id_; }
 
-    // Overridden from view for the mouse hovering.
+    // Overridden from view.
+    virtual void OnMouseMoved(const views::MouseEvent& event);
     virtual bool OnMousePressed(const views::MouseEvent& event);
 
     // Overridden from LocationBarImageView.
@@ -371,6 +375,9 @@ class LocationBarView : public LocationBar,
     // is the current page URL.
     void UpdateVisibility(TabContents* contents, const GURL& url);
 
+    // Either notify listners or show a popup depending on the page action.
+    void ExecuteAction(int button);
+
    private:
     // The location bar view that owns us.
     LocationBarView* owner_;