Update content/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

content/renderer/media/media_stream_source_observer.cc

 // Copyright (c) 2013 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_source_observer.h"
 
 #include "base/logging.h"
 #include "content/renderer/media/media_stream_source_extra_data.h"
 
 namespace content {
 
 MediaStreamSourceObserver::MediaStreamSourceObserver(
     webrtc::MediaSourceInterface* webrtc_source,
     MediaStreamSourceExtraData* extra_data)
      : state_(webrtc_source->state()),
        webrtc_source_(webrtc_source),
        extra_data_(extra_data) {
   webrtc_source_->RegisterObserver(this);
 }
 
 MediaStreamSourceObserver::~MediaStreamSourceObserver() {
   DCHECK(CalledOnValidThread());
-  if (webrtc_source_)
+  if (webrtc_source_.get())
     webrtc_source_->UnregisterObserver(this);
 }
 
 void MediaStreamSourceObserver::OnChanged() {
   DCHECK(CalledOnValidThread());
   // There should be no more notification after kEnded.
-  DCHECK(webrtc_source_ != NULL);
+  DCHECK(webrtc_source_.get() != NULL);
 
   webrtc::MediaSourceInterface::SourceState state = webrtc_source_->state();
   if (state == state_)
     return;
   state_ = state;
   WebKit::WebMediaStreamSource webkit_source(extra_data_->webkit_source());
 
   switch (state) {
     case webrtc::MediaSourceInterface::kInitializing:
       // Ignore the kInitializing state since there is no match in
@@ skipping 13 matching lines @@
       webrtc_source_->UnregisterObserver(this);
       webrtc_source_ = NULL;
       break;
     default:
       NOTREACHED();
       break;
   }
 }
 
 }  // namespace content