Implement chrome.bluetoothLowEnergy.resetAdvertising().

extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_api.cc

Index: extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_api.cc
diff --git a/extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_api.cc b/extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_api.cc
index 515838fcc5b58ea8564c49baf6508f8f6ab43e29..cf10b2ffd6e95dd0da36b89f239fc82e029265b9 100644
--- a/extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_api.cc
+++ b/extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_api.cc
@@ -1089,6 +1089,11 @@ void BluetoothLowEnergyAdvertisementFunction::RemoveAdvertisement(
   advertisements_manager_->Remove(extension_id(), advertisement_id);
 }
 
+const base::hash_set<int>*
+BluetoothLowEnergyAdvertisementFunction::GetAdvertisementIds() {
+  return advertisements_manager_->GetResourceIds(extension_id());
+}
+
 bool BluetoothLowEnergyAdvertisementFunction::RunAsync() {
   Initialize();
   return BluetoothLowEnergyExtensionFunctionDeprecated::RunAsync();
@@ -1267,6 +1272,82 @@ void BluetoothLowEnergyUnregisterAdvertisementFunction::ErrorCallback(
   SendResponse(false);
 }
 
+// ResetAllAdvertisements:
+
+bool BluetoothLowEnergyResetAllAdvertisementsFunction::DoWork() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  // Check permission in the manifest.
+  if (!BluetoothManifestData::CheckPeripheralPermitted(extension())) {
+    error_ = kErrorPermissionDenied;
+    SendResponse(false);
+    return false;
+  }
+
+  // For this API to be available the app has to be either auto
+  // launched in Kiosk Mode or the enable-ble-advertisement-in-apps
+  // should be set.
+  if (!(IsAutoLaunchedKioskApp(extension()->id()) ||
+        IsPeripheralFlagEnabled())) {
+    error_ = kErrorPermissionDenied;
+    SendResponse(false);
+    return false;
+  }
+
+  BluetoothLowEnergyEventRouter* event_router =
+      GetEventRouter(browser_context());
+
+  // If we don't have an initialized adapter, resetting advertisements is a
+  // no-op.
+  if (!event_router->HasAdapter())
+    return true;
+
+  base::hash_set<int> advertisement_ids;
+  if (GetAdvertisementIds()) {

[rkc, 2017/05/19 23:44:26]

This is not what we want to do. The need for this API primarily arises from the
situation where Chrome may have crashed and we'd have lost the existing
advertisement IDs. This should be using the ResetAdvertising API provided by
BlueZ (see:
https://chromium.googlesource.com/chromiumos/third_party/bluez/+/chromeos-5.4...).

[Sonny Sasaka, 2017/06/01 22:28:11]

Done.

+    advertisement_ids = *GetAdvertisementIds();
+  }
+
+  if (advertisement_ids.size() == 0) {
+    SendResponse(true);
+    return true;
+  }
+
+  for (int advertisement_id : advertisement_ids) {
+    BluetoothApiAdvertisement* advertisement =
+        GetAdvertisement(advertisement_id);
+    advertisement->advertisement()->Unregister(
+        base::Bind(&BluetoothLowEnergyResetAllAdvertisementsFunction::
+                       UnregisterSuccessCallback,
+                   this, advertisement_id),
+        base::Bind(&BluetoothLowEnergyResetAllAdvertisementsFunction::
+                       UnregisterErrorCallback,
+                   this, advertisement_id));
+  }
+
+  return true;
+}
+
+void BluetoothLowEnergyResetAllAdvertisementsFunction::OnUnregister(
+    int advertisement_id) {
+  RemoveAdvertisement(advertisement_id);
+  const base::hash_set<int>* advertisement_ids = GetAdvertisementIds();
+  // The last advertisement has been unregistered, we can send response now.
+  if (advertisement_ids && advertisement_ids->size() == 0) {
+    SendResponse(true);
+  }
+}
+
+void BluetoothLowEnergyResetAllAdvertisementsFunction::
+    UnregisterSuccessCallback(int advertisement_id) {
+  OnUnregister(advertisement_id);
+}
+
+void BluetoothLowEnergyResetAllAdvertisementsFunction::UnregisterErrorCallback(
+    int advertisement_id,
+    device::BluetoothAdvertisement::ErrorCode status) {
+  OnUnregister(advertisement_id);
+}
+
 // SetAdvertisingInterval:
 
 template class BLEPeripheralExtensionFunction<