Remove raw base::DictionaryValue::Set in //content

content/shell/browser/shell_devtools_bindings.cc

Index: content/shell/browser/shell_devtools_bindings.cc
diff --git a/content/shell/browser/shell_devtools_bindings.cc b/content/shell/browser/shell_devtools_bindings.cc
index 77bfc75a95bed31056a00181e54bd7013ddced47..e13e73db8f88d449ed884e91de0712ae3848fc09 100644
--- a/content/shell/browser/shell_devtools_bindings.cc
+++ b/content/shell/browser/shell_devtools_bindings.cc
@@ -6,10 +6,13 @@
 
 #include <stddef.h>
 
+#include <utility>
+
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/json/string_escape.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
@@ -323,16 +326,16 @@ void ShellDevToolsBindings::OnURLFetchComplete(const net::URLFetcher* source) {
   DCHECK(it != pending_requests_.end());
 
   base::DictionaryValue response;
-  base::DictionaryValue* headers = new base::DictionaryValue();
+  auto headers = base::MakeUnique<base::DictionaryValue>();
   net::HttpResponseHeaders* rh = source->GetResponseHeaders();
   response.SetInteger("statusCode", rh ? rh->response_code() : 200);
-  response.Set("headers", headers);
 
   size_t iterator = 0;
   std::string name;
   std::string value;
   while (rh && rh->EnumerateHeaderLines(&iterator, &name, &value))
     headers->SetString(name, value);
+  response.Set("headers", std::move(headers));
 
   SendMessageAck(it->second, &response);
   pending_requests_.erase(it);