Merge two Notification constructors, increase priority of low-battery notification.

chrome/browser/chromeos/power/peripheral_battery_observer.cc

Index: chrome/browser/chromeos/power/peripheral_battery_observer.cc
diff --git a/chrome/browser/chromeos/power/peripheral_battery_observer.cc b/chrome/browser/chromeos/power/peripheral_battery_observer.cc
index 51344ab9a00de7e28f602b4fad25f7ce7f588333..5e4a7f3d80f9bd2f6205fe2e716b3a9157ebce94 100644
--- a/chrome/browser/chromeos/power/peripheral_battery_observer.cc
+++ b/chrome/browser/chromeos/power/peripheral_battery_observer.cc
@@ -216,17 +216,21 @@ bool PeripheralBatteryObserver::PostNotification(const std::string& address,
       battery.level);
 
   Notification notification(
-      // TODO(mukai): add SYSTEM priority and use here.
+      message_center::NOTIFICATION_TYPE_SIMPLE,
       GURL(kNotificationOriginUrl),
-      ui::ResourceBundle::GetSharedInstance().GetImageNamed(
-          IDR_NOTIFICATION_PERIPHERAL_BATTERY_LOW),
       base::UTF8ToUTF16(battery.name),
       string_text,
+      ui::ResourceBundle::GetSharedInstance().GetImageNamed(
+          IDR_NOTIFICATION_PERIPHERAL_BATTERY_LOW),
       blink::WebTextDirectionDefault,
+      message_center::NotifierId(GURL(kNotificationOriginUrl)),
       base::string16(),
       base::UTF8ToUTF16(address),
+      message_center::RichNotificationData(),
       new PeripheralBatteryNotificationDelegate(address));
 
+  notification.set_priority(message_center::SYSTEM_PRIORITY);
+
   notification_manager->Add(
       notification,
       ProfileManager::GetPrimaryUserProfile());