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

chrome/browser/extensions/api/experience_sampling_private/experience_sampling.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/extensions/api/experience_sampling_private/experience_sampling.h"
 
 #include <utility>
 
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 65 matching lines @@
   // any events.
   if (browser_context_ && browser_context_->IsOffTheRecord())
     return;
   api::experience_sampling_private::UserDecision decision;
   decision.name = decision_name;
   decision.learn_more = has_viewed_learn_more();
   decision.details = has_viewed_details();
   decision.time = base::Time::Now().ToJsTime();
 
   std::unique_ptr<base::ListValue> args(new base::ListValue());
-  args->Append(ui_element_.ToValue().release());
-  args->Append(decision.ToValue().release());
+  args->Append(ui_element_.ToValue());
+  args->Append(decision.ToValue());
   std::unique_ptr<Event> event(
       new Event(events::EXPERIENCE_SAMPLING_PRIVATE_ON_DECISION,
                 api::experience_sampling_private::OnDecision::kEventName,
                 std::move(args)));
   EventRouter* router = EventRouter::Get(browser_context_);
   if (router)
     router->BroadcastEvent(std::move(event));
 }
 
 void ExperienceSamplingEvent::CreateOnDisplayedEvent() {
   // Check if this is from an incognito context. If it is, don't create and send
   // any events.
   if (browser_context_ && browser_context_->IsOffTheRecord())
     return;
   std::unique_ptr<base::ListValue> args(new base::ListValue());
-  args->Append(ui_element_.ToValue().release());
+  args->Append(ui_element_.ToValue());
   std::unique_ptr<Event> event(
       new Event(events::EXPERIENCE_SAMPLING_PRIVATE_ON_DISPLAYED,
                 api::experience_sampling_private::OnDisplayed::kEventName,
                 std::move(args)));
   EventRouter* router = EventRouter::Get(browser_context_);
   if (router)
     router->BroadcastEvent(std::move(event));
 }
 
 }  // namespace extensions