[Media Router Action] Hide action back in the overflow menu after popping it out

chrome/browser/ui/toolbar/toolbar_actions_bar.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/ui/toolbar/toolbar_actions_bar.h"
 
 #include <utility>
 
 #include "base/auto_reset.h"
 #include "base/location.h"
@@ skipping 586 matching lines @@
   std::unique_ptr<ToolbarActionsBarBubbleDelegate> delegate(
       new ExtensionMessageBubbleBridge(std::move(controller)));
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, base::Bind(&ToolbarActionsBar::ShowToolbarActionBubble,
                             weak_ptr_factory_.GetWeakPtr(),
                             base::Passed(std::move(delegate))),
       base::TimeDelta::FromSeconds(
           g_extension_bubble_appearance_wait_time_in_seconds));
 }
 
+ToolbarActionViewController* ToolbarActionsBar::popped_out_action() {
+  return popped_out_action_;
+}
+
 // static
 void ToolbarActionsBar::set_extension_bubble_appearance_wait_time_for_testing(
     int time_in_seconds) {
   g_extension_bubble_appearance_wait_time_in_seconds = time_in_seconds;
 }
 
 void ToolbarActionsBar::OnToolbarActionAdded(
     const ToolbarActionsModel::ToolbarItem& item,
     int index) {
   CHECK(model_->actions_initialized());
@@ skipping 185 matching lines @@
   for (ToolbarActionViewController* action : toolbar_actions_) {
     if (action->GetId() == action_id)
       return action;
   }
   return nullptr;
 }
 
 content::WebContents* ToolbarActionsBar::GetCurrentWebContents() {
   return browser_->tab_strip_model()->GetActiveWebContents();
 }