Cleanup: Remove unneeded scoped_ptr.h includes from content.

content/renderer/media/mock_peer_connection_impl.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_MOCK_PEER_CONNECTION_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_MOCK_PEER_CONNECTION_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
 #include "third_party/libjingle/source/talk/app/webrtc/peerconnection.h"
 
 class MockMediaStreamDependencyFactory;
 
 namespace webrtc {
 
 class MockStreamCollection;
 
 class MockPeerConnectionImpl : public PeerConnectionInterface {
  public:
-  MockPeerConnectionImpl(MockMediaStreamDependencyFactory* factory);
+  explicit MockPeerConnectionImpl(MockMediaStreamDependencyFactory* factory);
 
   // PeerConnectionInterface implementation.
   virtual void ProcessSignalingMessage(const std::string& msg) OVERRIDE;
   virtual bool Send(const std::string& msg) OVERRIDE;
   virtual talk_base::scoped_refptr<StreamCollectionInterface>
       local_streams() OVERRIDE;
   virtual talk_base::scoped_refptr<StreamCollectionInterface>
       remote_streams() OVERRIDE;
   virtual void AddStream(LocalMediaStreamInterface* stream) OVERRIDE;
   virtual void RemoveStream(LocalMediaStreamInterface* stream) OVERRIDE;
@@ skipping 61 matching lines @@
   std::string ice_label_;
   std::string ice_sdp_;
   ReadyState ready_state_;
 
   DISALLOW_COPY_AND_ASSIGN(MockPeerConnectionImpl);
 };
 
 }  // namespace webrtc
 
 #endif  // CONTENT_RENDERER_MEDIA_MOCK_PEER_CONNECTION_IMPL_H_