Convert //chrome from scoped_ptr to std::unique_ptr

chrome/utility/safe_json_parser_handler.h

Index: chrome/utility/safe_json_parser_handler.h
diff --git a/chrome/utility/safe_json_parser_handler.h b/chrome/utility/safe_json_parser_handler.h
index 8eeaf3e7d30522107e35178caf7f27f6adb64338..efbc144b8789a35cfffa8ff6026209af7d2a75f7 100644
--- a/chrome/utility/safe_json_parser_handler.h
+++ b/chrome/utility/safe_json_parser_handler.h
@@ -5,8 +5,9 @@
 #ifndef CHROME_UTILITY_SAFE_JSON_PARSER_HANDLER_H_
 #define CHROME_UTILITY_SAFE_JSON_PARSER_HANDLER_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "chrome/utility/utility_message_handler.h"
 
 namespace safe_json {
@@ -26,7 +27,7 @@ class SafeJsonParserHandler : public UtilityMessageHandler {
   bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
-  scoped_ptr<safe_json::SafeJsonParserMessageFilter> handler_;
+  std::unique_ptr<safe_json::SafeJsonParserMessageFilter> handler_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeJsonParserHandler);
 };