chrome/browser/media: Change auto to not deduce raw pointers.

chrome/browser/media/tab_desktop_media_list.cc

 // Copyright 2016 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/media/tab_desktop_media_list.h"
 
 #include "base/hash.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 69 matching lines @@
       browsers.push_back(browser);
     }
   }
 
   ImageHashesMap new_favicon_hashes;
   std::vector<SourceDescription> sources;
   std::map<base::TimeTicks, SourceDescription> tab_map;
   std::vector<std::pair<DesktopMediaID, gfx::ImageSkia>> favicon_pairs;
 
   // Enumerate all tabs with their titles and favicons for a user profile.
-  for (auto browser : browsers) {
+  for (auto* browser : browsers) {
     const TabStripModel* tab_strip_model = browser->tab_strip_model();
     DCHECK(tab_strip_model);
 
     for (int i = 0; i < tab_strip_model->count(); i++) {
       // Create id for tab.
       content::WebContents* contents = tab_strip_model->GetWebContentsAt(i);
       DCHECK(contents);
       content::RenderFrameHost* main_frame = contents->GetMainFrame();
       DCHECK(main_frame);
       DesktopMediaID media_id(
@@ skipping 46 matching lines @@
 
   // ScheduleNextRefresh() needs to be called after all calls for
   // UpdateSourceThumbnail() have done. Therefore, a DoNothing task is posted
   // to the same sequenced task runner that CreateEnlargedFaviconImag()
   // is posted.
   thumbnail_task_runner_.get()->PostTaskAndReply(
       FROM_HERE, base::Bind(&base::DoNothing),
       base::Bind(&TabDesktopMediaList::ScheduleNextRefresh,
                  weak_factory_.GetWeakPtr()));
 }