Pull browser action click logic into ToolbarModelController, so that when I

chrome/browser/ui/views/browser_actions_container.h

Index: chrome/browser/ui/views/browser_actions_container.h
diff --git a/chrome/browser/ui/views/browser_actions_container.h b/chrome/browser/ui/views/browser_actions_container.h
index abfe64a44625034737f1a62a51d59baa79a16023..90887c7f237e230ae02370b4e5e0903bdd06411a 100644
--- a/chrome/browser/ui/views/browser_actions_container.h
+++ b/chrome/browser/ui/views/browser_actions_container.h
@@ -469,6 +469,9 @@ class BrowserActionsContainer
   // for incognito.
   bool ShouldDisplayBrowserAction(const extensions::Extension* extension);
 
+  // Show a popup.
+  void ShowPopup(BrowserActionButton* button, const GURL& popup_url);
+
   // The vector of browser actions (icons/image buttons for each action). Note
   // that not every BrowserAction in the ToolbarModel will necessarily be in
   // this collection. Some extensions may be disabled in incognito windows.