[Content] Update V8ValueConverter::create to return a std::unique_ptr

content/renderer/web_ui_extension.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/web_ui_extension.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/strings/string_util.h"
@@ skipping 104 matching lines @@
   std::unique_ptr<base::ListValue> content;
   if (args->PeekNext().IsEmpty() || args->PeekNext()->IsUndefined()) {
     content.reset(new base::ListValue());
   } else {
     v8::Local<v8::Object> obj;
     if (!args->GetNext(&obj)) {
       args->ThrowError();
       return;
     }
 
-    std::unique_ptr<V8ValueConverter> converter(V8ValueConverter::create());
-    content = base::ListValue::From(
-        converter->FromV8Value(obj, frame->MainWorldScriptContext()));
+    content = base::ListValue::From(V8ValueConverter::Create()->FromV8Value(
+        obj, frame->MainWorldScriptContext()));
     DCHECK(content);
   }
 
   // Send the message up to the browser.
   render_view->Send(new ViewHostMsg_WebUISend(render_view->GetRoutingID(),
                                               frame->GetDocument().Url(),
                                               message, *content));
 }
 
 // static
 std::string WebUIExtension::GetVariableValue(const std::string& name) {
   blink::WebFrame* frame;
   RenderView* render_view;
   if (!ShouldRespondToRequest(&frame, &render_view))
     return std::string();
 
   return WebUIExtensionData::Get(render_view)->GetValue(name);
 }
 
 }  // namespace content