content: Change auto to not deduce raw pointers.

content/renderer/media/media_stream_video_source.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 "content/renderer/media/media_stream_video_source.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 
@@ skipping 526 matching lines @@
                          blink::WebString::fromUTF8(unsatisfied_constraint));
   }
 }
 
 void MediaStreamVideoSource::SetReadyState(
     blink::WebMediaStreamSource::ReadyState state) {
   DVLOG(3) << "MediaStreamVideoSource::SetReadyState state " << state;
   DCHECK(CalledOnValidThread());
   if (!owner().isNull())
     owner().setReadyState(state);
-  for (const auto& track : tracks_)
+  for (auto* track : tracks_)
     track->OnReadyStateChanged(state);
 }
 
 void MediaStreamVideoSource::SetMutedState(bool muted_state) {
   DVLOG(3) << "MediaStreamVideoSource::SetMutedState state=" << muted_state;
   DCHECK(CalledOnValidThread());
   if (!owner().isNull()) {
     owner().setReadyState(muted_state
         ? blink::WebMediaStreamSource::ReadyStateMuted
         : blink::WebMediaStreamSource::ReadyStateLive);
@@ skipping 11 matching lines @@
       callback(callback) {
 }
 
 MediaStreamVideoSource::TrackDescriptor::TrackDescriptor(
     const TrackDescriptor& other) = default;
 
 MediaStreamVideoSource::TrackDescriptor::~TrackDescriptor() {
 }
 
 }  // namespace content