Convert //media/audio from scoped_ptr to std::unique_ptr

media/audio/android/opensles_input.h

Index: media/audio/android/opensles_input.h
diff --git a/media/audio/android/opensles_input.h b/media/audio/android/opensles_input.h
index 8e560dafa08e2b8f8ab30e42f3398ad273b4c30b..7a99cd7902162442780e8cda248c22bfdd49bad9 100644
--- a/media/audio/android/opensles_input.h
+++ b/media/audio/android/opensles_input.h
@@ -9,6 +9,8 @@
 #include <SLES/OpenSLES_Android.h>
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/synchronization/lock.h"
@@ -98,7 +100,7 @@ class OpenSLESInputStream : public AudioInputStream {
 
   bool started_;
 
-  scoped_ptr<media::AudioBus> audio_bus_;
+  std::unique_ptr<media::AudioBus> audio_bus_;
 
   DISALLOW_COPY_AND_ASSIGN(OpenSLESInputStream);
 };