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

content/browser/background_sync/background_sync_network_observer.cc

Index: content/browser/background_sync/background_sync_network_observer.cc
diff --git a/content/browser/background_sync/background_sync_network_observer.cc b/content/browser/background_sync/background_sync_network_observer.cc
index a08e7d837183f989a37c46a713523ec6d84f1689..1c6f2bd98163864f14e98ed2647fdf00a6550117 100644
--- a/content/browser/background_sync/background_sync_network_observer.cc
+++ b/content/browser/background_sync/background_sync_network_observer.cc
@@ -10,15 +10,6 @@
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
-
-// static
-bool BackgroundSyncNetworkObserver::ignore_network_change_notifier_ = false;
-
-// static
-void BackgroundSyncNetworkObserver::SetIgnoreNetworkChangeNotifierForTests(
-    bool ignore) {
-  ignore_network_change_notifier_ = ignore;
-}
 
 BackgroundSyncNetworkObserver::BackgroundSyncNetworkObserver(
     const base::Closure& network_changed_callback)
@@ -56,18 +47,17 @@
   return false;
 }
 
+void BackgroundSyncNetworkObserver::NotifyNetworkChanged() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
+                                                network_changed_callback_);
+}
+
 void BackgroundSyncNetworkObserver::OnNetworkChanged(
     net::NetworkChangeNotifier::ConnectionType connection_type) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
-  if (ignore_network_change_notifier_)
-    return;
-  NotifyManagerIfNetworkChanged(connection_type);
-}
-
-void BackgroundSyncNetworkObserver::NotifyManagerIfNetworkChanged(
-    net::NetworkChangeNotifier::ConnectionType connection_type) {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (connection_type == connection_type_)
     return;
 
@@ -75,11 +65,4 @@
   NotifyNetworkChanged();
 }
 
-void BackgroundSyncNetworkObserver::NotifyNetworkChanged() {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-
-  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
-                                                network_changed_callback_);
-}
-
 }  // namespace content