Remove BrowserIterator

chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.cc

 // Copyright (c) 2012 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/ash/launcher/app_shortcut_launcher_item_controller.h"
 
 #include <stddef.h>
 
 #include "ash/shelf/shelf_model.h"
 #include "ash/shell.h"
@@ skipping 159 matching lines @@
     refocus_pattern.Parse(refocus_url_.spec());
   }
 
   const Extension* extension =
       launcher_controller()->GetExtensionForAppID(app_id());
 
   // It is possible to come here While an extension gets loaded.
   if (!extension)
     return items;
 
-  for (auto& browser : *BrowserList::GetInstance()) {
+  for (auto* browser : *BrowserList::GetInstance()) {
     if (!launcher_controller()->IsBrowserFromActiveUser(browser))
       continue;
     TabStripModel* tab_strip = browser->tab_strip_model();
     for (int index = 0; index < tab_strip->count(); index++) {
       content::WebContents* web_contents = tab_strip->GetWebContentsAt(index);
       if (WebContentMatchesApp(
               extension, refocus_pattern, web_contents, browser))
         items.push_back(web_contents);
     }
   }
@@ skipping 178 matching lines @@
 
 bool AppShortcutLauncherItemController::AllowNextLaunchAttempt() {
   if (last_launch_attempt_.is_null() ||
       last_launch_attempt_ + base::TimeDelta::FromMilliseconds(
           kClickSuppressionInMS) < base::Time::Now()) {
     last_launch_attempt_ = base::Time::Now();
     return true;
   }
   return false;
 }