Add ability for a BubbleReference to update the BubbleUI.

components/bubble/bubble_manager.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 COMPONENTS_BUBBLE_BUBBLE_MANAGER_H_
 #define COMPONENTS_BUBBLE_BUBBLE_MANAGER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/threading/thread_checker.h"
@@ skipping 20 matching lines @@
   // Notify a bubble of an event that might trigger close.
   // Returns true if the bubble was actually closed.
   bool CloseBubble(BubbleReference bubble, BubbleCloseReason reason);
 
   // Notify all bubbles of an event that might trigger close.
   void CloseAllBubbles(BubbleCloseReason reason);
 
   // Notify all bubbles that their anchor or parent may have changed.
   void UpdateAllBubbleAnchors();
 
+  // Notify a bubble that it should update its UI.
+  // Returns true if the UI was updated.
+  bool UpdateBubbleUI(BubbleReference bubble);
+
  private:
   enum ManagerStates {
     SHOW_BUBBLES,
     QUEUE_BUBBLES,
     NO_MORE_BUBBLES,
   };
 
   // Show any bubbles that were added to |show_queue_|.
   void ShowPendingBubbles();
 
   // Verify that functions that affect the UI are done on the same thread.
   base::ThreadChecker thread_checker_;
 
   // Determines what happens to a bubble when |ShowBubble| is called.
   ManagerStates manager_state_;
 
   // The bubbles that are being managed.
   ScopedVector<BubbleController> controllers_;
 
   // The bubbles queued to be shown when possible.
   ScopedVector<BubbleController> show_queue_;
 
   DISALLOW_COPY_AND_ASSIGN(BubbleManager);
 };
 
 #endif  // COMPONENTS_BUBBLE_BUBBLE_MANAGER_H_