Reland of [Background Sync] Trigger Background Sync events when Chrome is backgrounded on Android

content/browser/background_sync/background_sync_manager.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 "content/browser/background_sync/background_sync_manager.h"
 
 #include "base/barrier_closure.h"
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/metrics/field_trial.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "content/browser/background_sync/background_sync_metrics.h"
 #include "content/browser/background_sync/background_sync_network_observer.h"
 #include "content/browser/background_sync/background_sync_power_observer.h"
 #include "content/browser/background_sync/background_sync_registration_handle.h"
 #include "content/browser/background_sync/background_sync_registration_options.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/browser/service_worker/service_worker_storage.h"
 #include "content/public/browser/browser_thread.h"
 
 #if defined(OS_ANDROID)
 #include "content/browser/android/background_sync_launcher_android.h"
+#include "content/browser/android/background_sync_network_observer_android.h"
 #endif
 
 namespace content {
 
 class BackgroundSyncManager::RefCountedRegistration
     : public base::RefCounted<RefCountedRegistration> {
  public:
   BackgroundSyncRegistration* value() { return &registration_; }
   const BackgroundSyncRegistration* value() const { return &registration_; }
 
@@ skipping 180 matching lines @@
 
 BackgroundSyncManager::BackgroundSyncManager(
     const scoped_refptr<ServiceWorkerContextWrapper>& service_worker_context)
     : service_worker_context_(service_worker_context),
       disabled_(false),
       weak_ptr_factory_(this) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   service_worker_context_->AddObserver(this);
 
+#if defined(OS_ANDROID)
+  network_observer_.reset(new BackgroundSyncNetworkObserverAndroid(
+      base::Bind(&BackgroundSyncManager::OnNetworkChanged,
+                 weak_ptr_factory_.GetWeakPtr())));
+#else
   network_observer_.reset(new BackgroundSyncNetworkObserver(
       base::Bind(&BackgroundSyncManager::OnNetworkChanged,
                  weak_ptr_factory_.GetWeakPtr())));
+#endif
   power_observer_.reset(new BackgroundSyncPowerObserver(base::Bind(
       &BackgroundSyncManager::OnPowerChanged, weak_ptr_factory_.GetWeakPtr())));
 }
 
 void BackgroundSyncManager::Init() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(!op_scheduler_.ScheduledOperations());
   DCHECK(!disabled_);
 
   op_scheduler_.ScheduleOperation(base::Bind(&BackgroundSyncManager::InitImpl,
@@ skipping 1073 matching lines @@
 BackgroundSyncManager::MakeStatusCompletion(const StatusCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   return base::Bind(
       &BackgroundSyncManager::CompleteOperationCallback<StatusCallback,
                                                         BackgroundSyncStatus>,
       weak_ptr_factory_.GetWeakPtr(), callback);
 }
 
 }  // namespace content