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

media/base/data_buffer.cc

Index: media/base/data_buffer.cc
diff --git a/media/base/data_buffer.cc b/media/base/data_buffer.cc
index 0c103f24e29512927af55329a415d7145d0de0c0..9a693eb5188a1ff86a89c0f1c85083a1720f7dbb 100644
--- a/media/base/data_buffer.cc
+++ b/media/base/data_buffer.cc
@@ -15,7 +15,7 @@ DataBuffer::DataBuffer(int buffer_size)
   data_.reset(new uint8_t[buffer_size_]);
 }
 
-DataBuffer::DataBuffer(scoped_ptr<uint8_t[]> buffer, int buffer_size)
+DataBuffer::DataBuffer(std::unique_ptr<uint8_t[]> buffer, int buffer_size)
     : data_(std::move(buffer)),
       buffer_size_(buffer_size),
       data_size_(buffer_size) {