Replace scoped_ptr with std::unique_ptr in //media/base.

media/base/audio_block_fifo_unittest.cc

Index: media/base/audio_block_fifo_unittest.cc
diff --git a/media/base/audio_block_fifo_unittest.cc b/media/base/audio_block_fifo_unittest.cc
index d9cfb7e3b8db805cd88e6647941a20946173f51a..d671e836ad1d420c1ed0881711fb07c2a3c39a6b 100644
--- a/media/base/audio_block_fifo_unittest.cc
+++ b/media/base/audio_block_fifo_unittest.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include <stdint.h>
+#include <memory>
 
 #include "base/macros.h"
 #include "base/time/time.h"
@@ -33,7 +34,7 @@ class AudioBlockFifoTest : public testing::Test {
     DCHECK_LE(frames_to_push, fifo->GetUnfilledFrames());
     const int bytes_per_sample = 2;
     const int data_byte_size = bytes_per_sample * channels * frames_to_push;
-    scoped_ptr<uint8_t[]> data(new uint8_t[data_byte_size]);
+    std::unique_ptr<uint8_t[]> data(new uint8_t[data_byte_size]);
     memset(data.get(), 1, data_byte_size);
     fifo->Push(data.get(), frames_to_push, bytes_per_sample);
   }