Remove implicit conversions from scoped_refptr to T* in media/

media/cast/cast_sender_impl.cc

 // Copyright 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 "media/cast/cast_sender_impl.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 59 matching lines @@
 
   scoped_refptr<CastEnvironment> cast_environment_;
   base::WeakPtr<AudioSender> audio_sender_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalAudioFrameInput);
 };
 
 scoped_ptr<CastSender> CastSender::Create(
     scoped_refptr<CastEnvironment> cast_environment,
     CastTransportSender* const transport_sender) {
-  CHECK(cast_environment);
+  CHECK(cast_environment.get());
   return scoped_ptr<CastSender>(
       new CastSenderImpl(cast_environment, transport_sender));
 }
 
 CastSenderImpl::CastSenderImpl(
     scoped_refptr<CastEnvironment> cast_environment,
     CastTransportSender* const transport_sender)
     : cast_environment_(cast_environment),
       transport_sender_(transport_sender),
       weak_factory_(this) {
-  CHECK(cast_environment);
+  CHECK(cast_environment.get());
 }
 
 void CastSenderImpl::InitializeAudio(
     const AudioSenderConfig& audio_config,
     const CastInitializationCallback& cast_initialization_cb) {
   DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN));
   CHECK(audio_config.use_external_encoder ||
         cast_environment_->HasAudioThread());
 
   VLOG(1) << "CastSenderImpl@" << this << "::InitializeAudio()";
@@ skipping 63 matching lines @@
   if (audio_sender_) {
     audio_sender_->SetTargetPlayoutDelay(new_target_playout_delay);
   }
   if (video_sender_) {
     video_sender_->SetTargetPlayoutDelay(new_target_playout_delay);
   }
 }
 
 }  // namespace cast
 }  // namespace media