#1031 fix javascript promise never invoked

build/patches/disable-battery-status-updater.patch

@@ -20,25 +20,28 @@ References: https://github.com/iridium-browser/iridium-browser/issues/40
 
 License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
 ---
- services/device/battery/battery_status_service.cc | 2 ++
- 1 file changed, 2 insertions(+)
+ services/device/battery/battery_status_service.cc | 12 +-----------
+ 1 file changed, 1 insertion(+), 11 deletions(-)
 
 diff --git a/services/device/battery/battery_status_service.cc b/services/device/battery/battery_status_service.cc
 --- a/services/device/battery/battery_status_service.cc
 +++ b/services/device/battery/battery_status_service.cc
-@@ -43,6 +43,7 @@ base::CallbackListSubscription BatteryStatusService::AddCallback(
+@@ -43,17 +43,7 @@ base::CallbackListSubscription BatteryStatusService::AddCallback(
    if (!battery_fetcher_)
      battery_fetcher_ = BatteryStatusManager::Create(update_callback_);
  
-+#if 0
-   if (callback_list_.empty()) {
-     bool success = battery_fetcher_->StartListeningBatteryChange();
-     // On failure pass the default values back.
-@@ -54,6 +55,7 @@ base::CallbackListSubscription BatteryStatusService::AddCallback(
-     // Send recent status to the new callback if already available.
-     callback.Run(status_);
-   }
-+#endif
+-  if (callback_list_.empty()) {
+-    bool success = battery_fetcher_->StartListeningBatteryChange();
+-    // On failure pass the default values back.
+-    if (!success)
+-      callback.Run(mojom::BatteryStatus());
+-  }
+-
+-  if (status_updated_) {
+-    // Send recent status to the new callback if already available.
+-    callback.Run(status_);
+-  }
++  callback.Run(mojom::BatteryStatus());
  
    return callback_list_.Add(callback);
  }