base::ListValue::Append cleanup: pass unique_ptr instead of the released pointer.

chrome/browser/ui/webui/copresence_ui_handler.cc

 // Copyright 2014 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 "chrome/browser/ui/webui/copresence_ui_handler.h"
 
 #include <map>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/i18n/time_formatting.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/copresence/copresence_api.h"
 #include "components/copresence/proto/data.pb.h"
 #include "components/copresence/public/copresence_manager.h"
 #include "components/copresence/public/copresence_state.h"
@@ skipping 142 matching lines @@
 
     js_directive->SetString("type", FormatInstructionType(
         directive.token_instruction().token_instruction_type()));
     js_directive->SetString("medium", FormatMedium(
         directive.token_instruction().medium()));
     js_directive->SetString("duration", ui::TimeFormat::Simple(
         ui::TimeFormat::FORMAT_DURATION,
         ui::TimeFormat::LENGTH_LONG,
         base::TimeDelta::FromMilliseconds(directive.ttl_millis())));
 
-    js_directives.Append(js_directive.release());
+    js_directives.Append(std::move(js_directive));
   }
 
   web_ui()->CallJavascriptFunctionUnsafe("refreshDirectives", js_directives);
 }
 
 void CopresenceUIHandler::TokenTransmitted(const TransmittedToken& token) {
   web_ui()->CallJavascriptFunctionUnsafe("updateTransmittedToken",
                                          *FormatToken(token));
 }
 
@@ skipping 21 matching lines @@
 
   // CopresenceService::ResetState() deletes the CopresenceState object
   // we were using. We have to get the new one and reconnect to it.
   state_ = GetCopresenceState(service);
   DCHECK(state_);
   state_->AddObserver(this);
 
   web_ui()->CallJavascriptFunctionUnsafe("clearTokens");
   DirectivesUpdated();
 }