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

media/audio/win/audio_low_latency_input_win.cc

Index: media/audio/win/audio_low_latency_input_win.cc
diff --git a/media/audio/win/audio_low_latency_input_win.cc b/media/audio/win/audio_low_latency_input_win.cc
index 7fff5ff40858b44480b04040161e703cbf039627..50544579a7c8c8850f2dd5cafbb182a8db84cfac 100644
--- a/media/audio/win/audio_low_latency_input_win.cc
+++ b/media/audio/win/audio_low_latency_input_win.cc
@@ -4,8 +4,9 @@
 
 #include "media/audio/win/audio_low_latency_input_win.h"
 
+#include <memory>
+
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/trace_event/trace_event.h"
 #include "media/audio/win/audio_manager_win.h"
@@ -291,7 +292,7 @@ void WASAPIAudioInputStream::Run() {
   size_t capture_buffer_size = std::max(
       2 * endpoint_buffer_size_frames_ * frame_size_,
       2 * packet_size_frames_ * frame_size_);
-  scoped_ptr<uint8_t[]> capture_buffer(new uint8_t[capture_buffer_size]);
+  std::unique_ptr<uint8_t[]> capture_buffer(new uint8_t[capture_buffer_size]);
 
   LARGE_INTEGER now_count = {};
   bool recording = true;