[Extensions] Show a "refresh" bubble when needed with click-to-script

chrome/browser/ui/toolbar/toolbar_actions_bar_bubble_delegate.h

Index: chrome/browser/ui/toolbar/toolbar_actions_bar_bubble_delegate.h
diff --git a/chrome/browser/ui/toolbar/toolbar_actions_bar_bubble_delegate.h b/chrome/browser/ui/toolbar/toolbar_actions_bar_bubble_delegate.h
index 508371eafcd9157c0bc9742d92ddf66b49611dd6..d07dc71aff076df4a54f5aebf9587845dc7748b7 100644
--- a/chrome/browser/ui/toolbar/toolbar_actions_bar_bubble_delegate.h
+++ b/chrome/browser/ui/toolbar/toolbar_actions_bar_bubble_delegate.h
@@ -5,6 +5,8 @@
 #ifndef CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_BUBBLE_DELEGATE_H_
 #define CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_BUBBLE_DELEGATE_H_
 
+#include <string>
+
 #include "base/strings/string16.h"
 
 // A delegate for a generic bubble that hangs off the toolbar actions bar.
@@ -43,6 +45,10 @@ class ToolbarActionsBarBubbleDelegate {
   // string, no button will be added.
   virtual base::string16 GetLearnMoreButtonText() = 0;
 
+  // Returns the id of the action to point to, or the empty string if the
+  // bubble should point to the center of the actions container.
+  virtual std::string GetAnchorActionId() = 0;
+
   // Called when the bubble is shown.
   virtual void OnBubbleShown() = 0;