Web MIDI: implement TaskService

media/midi/midi_service.cc

 // Copyright 2016 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 "media/midi/midi_service.h"
 
 #include "base/feature_list.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "media/midi/midi_manager.h"
 #include "media/midi/midi_switches.h"
+#include "media/midi/task_service.h"
 
 namespace midi {
 
 namespace {
 
 bool IsDynamicInstantiationEnabled() {
 // TODO(toyoshim): Support on all platforms. See https://crbug.com/672793.
 #if defined(OS_LINUX) || defined(OS_WIN)
   return true;
 #else
   return base::FeatureList::IsEnabled(
       features::kMidiManagerDynamicInstantiation);
 #endif
 }
 
 }  // namespace
 
 MidiService::MidiService(void)
-    : is_dynamic_instantiation_enabled_(IsDynamicInstantiationEnabled()),
+    : task_service_(base::MakeUnique<TaskService>()),
+      is_dynamic_instantiation_enabled_(IsDynamicInstantiationEnabled()),
       active_clients_(0u) {
   base::AutoLock lock(lock_);
 
   if (!is_dynamic_instantiation_enabled_)
     manager_ = base::WrapUnique(MidiManager::Create(this));
 }
 
 MidiService::MidiService(std::unique_ptr<MidiManager> manager)
-    : is_dynamic_instantiation_enabled_(false), active_clients_(0u) {
+    : task_service_(base::MakeUnique<TaskService>()),
+      is_dynamic_instantiation_enabled_(false),
+      active_clients_(0u) {
   base::AutoLock lock(lock_);
 
   manager_ = std::move(manager);
 }
 
 MidiService::~MidiService() {
   base::AutoLock lock(lock_);
 
   manager_.reset();
 
@@ skipping 62 matching lines @@
         base::StringPrintf("MidiServiceThread(%zu)", runner_id));
 #if defined(OS_WIN)
     threads_[runner_id]->init_com_with_mta(true);
 #endif
     threads_[runner_id]->Start();
   }
   return threads_[runner_id]->task_runner();
 }
 
 }  // namespace midi