Port more uses of OwnPtr to std::unique_ptr

sky/engine/tonic/dart_timer_heap.cc

 // Copyright 2015 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 "sky/engine/tonic/dart_timer_heap.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/time/time.h"
 #include "sky/engine/tonic/dart_api_scope.h"
 #include "sky/engine/tonic/dart_invoke.h"
 #include "sky/engine/tonic/dart_isolate_scope.h"
 #include "sky/engine/tonic/dart_state.h"
 
 namespace blink {
 
 DartTimerHeap::DartTimerHeap() : next_timer_id_(1), weak_factory_(this) {
 }
 
 DartTimerHeap::~DartTimerHeap() {
 }
 
-int DartTimerHeap::Add(PassOwnPtr<Task> task) {
+int DartTimerHeap::Add(std::unique_ptr<Task> task) {
   int id = next_timer_id_++;
-  Schedule(id, task);
+  Schedule(id, std::move(task));
   return id;
 }
 
 void DartTimerHeap::Remove(int id) {
   heap_.erase(id);
 }
 
-void DartTimerHeap::Schedule(int id, PassOwnPtr<Task> task) {
+void DartTimerHeap::Schedule(int id, std::unique_ptr<Task> task) {
   base::TimeDelta delay = task->delay;
-  heap_[id] = task;
+  heap_[id] = std::move(task);
   base::MessageLoop::current()->PostDelayedTask(FROM_HERE,
     base::Bind(&DartTimerHeap::Run, weak_factory_.GetWeakPtr(), id), delay);
 }
 
 void DartTimerHeap::Run(int id) {
   auto it = heap_.find(id);
   if (it == heap_.end())
     return;
-  OwnPtr<Task> task = it->second.release();
+  Task* task = it->second.release();

[abarth-chromium, 2015/07/16 17:43:22]

Please store the task in a st::unique_ptr on the stack so that we don't leake it
on line 47.

[Cutch, 2015/07/16 17:45:49]

Done.

   heap_.erase(it);
   if (!task->closure.dart_state())
     return;
   DartIsolateScope scope(task->closure.dart_state()->isolate());
   DartApiScope api_scope;
   DartInvokeAppClosure(task->closure.value(), 0, nullptr);
   if (task->repeating)
-    Schedule(id, task.release());
+    Schedule(id, std::unique_ptr<Task>(task));
 }
 
 }