Backporting JSONValues from protocol::Values

third_party/WebKit/Source/modules/filesystem/DevToolsHostFileSystem.cpp

Index: third_party/WebKit/Source/modules/filesystem/DevToolsHostFileSystem.cpp
diff --git a/third_party/WebKit/Source/modules/filesystem/DevToolsHostFileSystem.cpp b/third_party/WebKit/Source/modules/filesystem/DevToolsHostFileSystem.cpp
index 7b6a271f65ad03cb7beec6cfcab3cba56b024677..b875cef17d779aa5402a556c176b85b2d154bf3c 100644
--- a/third_party/WebKit/Source/modules/filesystem/DevToolsHostFileSystem.cpp
+++ b/third_party/WebKit/Source/modules/filesystem/DevToolsHostFileSystem.cpp
@@ -21,12 +21,12 @@ DOMFileSystem* DevToolsHostFileSystem::isolatedFileSystem(DevToolsHost& host, co
 
 void DevToolsHostFileSystem::upgradeDraggedFileSystemPermissions(DevToolsHost& host, DOMFileSystem* domFileSystem)
 {
-    RefPtr<JSONObject> message = JSONObject::create();
-    message->setNumber("id", 0);
+    std::unique_ptr<JSONObject> message = JSONObject::create();
+    message->setInteger("id", 0);
     message->setString("method", "upgradeDraggedFileSystemPermissions");
-    RefPtr<JSONArray> params = JSONArray::create();
-    message->setArray("params", params);
+    std::unique_ptr<JSONArray> params = JSONArray::create();
     params->pushString(domFileSystem->rootURL().getString());
+    message->setArray("params", std::move(params));
     host.sendMessageToEmbedder(message->toJSONString());
 }