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

chrome/browser/ui/toolbar/toolbar_actions_bar_bubble_delegate.h

 // Copyright 2015 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_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.
 class ToolbarActionsBarBubbleDelegate {
  public:
   enum CloseAction {
     CLOSE_LEARN_MORE,
     CLOSE_EXECUTE,
     CLOSE_DISMISS_USER_ACTION,
     CLOSE_DISMISS_DEACTIVATION,
@@ skipping 18 matching lines @@
   // Gets the text for a second button on the bubble; this button will
   // correspond with ACTION_DISMISS. If this returns an empty string, no
   // button will be added.
   virtual base::string16 GetDismissButtonText() = 0;
 
   // Gets the text for a "learn more" link-style button on the bubble; this
   // button will correspond with ACTION_LEARN_MORE. If this returns an empty
   // 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;
 
   // Called when the bubble is closed with the type of action the user took.
   virtual void OnBubbleClosed(CloseAction action) = 0;
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_BUBBLE_DELEGATE_H_