Change scoped_ptr to std::unique_ptr in //net.

net/tools/dns_fuzz_stub/dns_fuzz_stub.cc

Index: net/tools/dns_fuzz_stub/dns_fuzz_stub.cc
diff --git a/net/tools/dns_fuzz_stub/dns_fuzz_stub.cc b/net/tools/dns_fuzz_stub/dns_fuzz_stub.cc
index 2a2c88e9e589fec7a86f0f09c1f735b46cef968e..ed2a7579aaea81190773d89f7c0b4a1e8d167340 100644
--- a/net/tools/dns_fuzz_stub/dns_fuzz_stub.cc
+++ b/net/tools/dns_fuzz_stub/dns_fuzz_stub.cc
@@ -6,6 +6,7 @@
 
 #include <algorithm>
 #include <limits>
+#include <memory>
 #include <sstream>
 #include <string>
 #include <vector>
@@ -13,7 +14,6 @@
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "net/base/address_list.h"
@@ -62,7 +62,7 @@ bool ReadTestCase(const char* filename,
     return false;
   }
 
-  scoped_ptr<base::Value> value = base::JSONReader::Read(json);
+  std::unique_ptr<base::Value> value = base::JSONReader::Read(json);
   if (!value.get()) {
     LOG(ERROR) << filename << ": couldn't parse JSON.";
     return false;