Convert chrome/common to std::unique_ptr

chrome/common/cloud_print/cloud_print_helpers.cc

Index: chrome/common/cloud_print/cloud_print_helpers.cc
diff --git a/chrome/common/cloud_print/cloud_print_helpers.cc b/chrome/common/cloud_print/cloud_print_helpers.cc
index a5a450ed102427e2e1328a17de72850195e7eda0..9a2a00a431fd3b74e51f1dbd55a6ba9affc399f2 100644
--- a/chrome/common/cloud_print/cloud_print_helpers.cc
+++ b/chrome/common/cloud_print/cloud_print_helpers.cc
@@ -7,11 +7,11 @@
 #include <stdint.h>
 
 #include <limits>
+#include <memory>
 
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/md5.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/stringprintf.h"
 #include "base/sys_info.h"
 #include "base/values.h"
@@ -184,17 +184,18 @@ GURL GetUrlForGetAuthCode(const GURL& cloud_print_server_url,
   return cloud_print_server_url.ReplaceComponents(replacements);
 }
 
-scoped_ptr<base::DictionaryValue> ParseResponseJSON(
+std::unique_ptr<base::DictionaryValue> ParseResponseJSON(
     const std::string& response_data,
     bool* succeeded) {
-  scoped_ptr<base::Value> message_value(base::JSONReader::Read(response_data));
+  std::unique_ptr<base::Value> message_value(
+      base::JSONReader::Read(response_data));
   if (!message_value.get())
-    return scoped_ptr<base::DictionaryValue>();
+    return std::unique_ptr<base::DictionaryValue>();
 
   if (!message_value->IsType(base::Value::TYPE_DICTIONARY))
-    return scoped_ptr<base::DictionaryValue>();
+    return std::unique_ptr<base::DictionaryValue>();
 
-  scoped_ptr<base::DictionaryValue> response_dict(
+  std::unique_ptr<base::DictionaryValue> response_dict(
       static_cast<base::DictionaryValue*>(message_value.release()));
   if (succeeded &&
       !response_dict->GetBoolean(kSuccessValue, succeeded))