Fix auto raw pointer deduction on linux

content/browser/media/session/audio_focus_manager.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 "content/browser/media/session/audio_focus_manager.h"
 
 #include "base/memory/ptr_util.h"
 #include "content/browser/media/session/media_session_impl.h"
 #include "content/public/browser/web_contents.h"
 
@@ skipping 16 matching lines @@
   }
 
   MaybeRemoveFocusEntry(media_session);
 
   // TODO(zqzhang): It seems like MediaSessionImpl is exposed to
   // AudioFocusManager
   // too much. Maybe it's better to do some abstraction and refactoring to clean
   // up the relation between AudioFocusManager and MediaSessionImpl.
   // See https://crbug.com/651069
   if (type == AudioFocusType::GainTransientMayDuck) {
-    for (const auto old_session : audio_focus_stack_) {
+    for (auto* old_session : audio_focus_stack_) {
       old_session->StartDucking();
     }
   } else {
-    for (const auto old_session : audio_focus_stack_) {
+    for (auto* old_session : audio_focus_stack_) {
       if (old_session->IsActive()) {
         if (old_session->HasPepper())
           old_session->StartDucking();
         else
           old_session->Suspend(MediaSessionImpl::SuspendType::SYSTEM);
       }
     }
   }
 
   audio_focus_stack_.push_back(media_session);
@@ skipping 35 matching lines @@
 
 AudioFocusManager::AudioFocusManager() = default;
 
 AudioFocusManager::~AudioFocusManager() = default;
 
 void AudioFocusManager::MaybeRemoveFocusEntry(MediaSessionImpl* media_session) {
   audio_focus_stack_.remove(media_session);
 }
 
 }  // namespace content