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

media/audio/mac/audio_low_latency_input_mac.h

Index: media/audio/mac/audio_low_latency_input_mac.h
diff --git a/media/audio/mac/audio_low_latency_input_mac.h b/media/audio/mac/audio_low_latency_input_mac.h
index e17b3a8cbfd9506e9f875d9d43141f9b246e20b9..332828b783f3c978a215ec96095b30bf0dca6b3c 100644
--- a/media/audio/mac/audio_low_latency_input_mac.h
+++ b/media/audio/mac/audio_low_latency_input_mac.h
@@ -38,13 +38,14 @@
 
 #include <AudioUnit/AudioUnit.h>
 #include <CoreAudio/CoreAudio.h>
+
 #include <map>
+#include <memory>
 #include <vector>
 
 #include "base/atomicops.h"
 #include "base/cancelable_callback.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
@@ -229,7 +230,7 @@ class MEDIA_EXPORT AUAudioInputStream
 
   // Temporary storage for recorded data. The InputProc() renders into this
   // array as soon as a frame of the desired buffer size has been recorded.
-  scoped_ptr<uint8_t[]> audio_data_buffer_;
+  std::unique_ptr<uint8_t[]> audio_data_buffer_;
 
   // Fixed capture hardware latency in frames.
   double hardware_latency_frames_;
@@ -257,7 +258,7 @@ class MEDIA_EXPORT AUAudioInputStream
   // Timer which triggers CheckInputStartupSuccess() to verify that input
   // callbacks have started as intended after a successful call to Start().
   // This timer lives on the main browser thread.
-  scoped_ptr<base::OneShotTimer> input_callback_timer_;
+  std::unique_ptr<base::OneShotTimer> input_callback_timer_;
 
   // Set to true if the Start() call was delayed.
   // See AudioManagerMac::ShouldDeferStreamStart() for details.
@@ -301,7 +302,7 @@ class MEDIA_EXPORT AUAudioInputStream
 
   // Timer that provides periodic callbacks used to monitor if the input stream
   // is alive or not.
-  scoped_ptr<base::RepeatingTimer> check_alive_timer_;
+  std::unique_ptr<base::RepeatingTimer> check_alive_timer_;
 
   // Time tick set once in each input data callback. The time is measured on
   // the real-time priority I/O thread but this member is modified and read