Implement chrome.bluetoothLowEnergy.resetAdvertising().

device/bluetooth/bluez/bluetooth_advertisement_bluez_unittest.cc

Index: device/bluetooth/bluez/bluetooth_advertisement_bluez_unittest.cc
diff --git a/device/bluetooth/bluez/bluetooth_advertisement_bluez_unittest.cc b/device/bluetooth/bluez/bluetooth_advertisement_bluez_unittest.cc
index 3c7addf719a9a2030df75396cdb5a80e1cd9e66d..170c80636797b6799f26b8e6249e23be82aecbc3 100644
--- a/device/bluetooth/bluez/bluetooth_advertisement_bluez_unittest.cc
+++ b/device/bluetooth/bluez/bluetooth_advertisement_bluez_unittest.cc
@@ -279,4 +279,31 @@ TEST_F(BluetoothAdvertisementBlueZTest, UnregisterAfterAdapterShutdown) {
   ExpectError(BluetoothAdvertisement::ERROR_ADVERTISEMENT_DOES_NOT_EXIST);
 }
 
+TEST_F(BluetoothAdvertisementBlueZTest, ResetAdvertising) {
+  bluez::FakeBluetoothLEAdvertisingManagerClient* adv_client =
+      static_cast<bluez::FakeBluetoothLEAdvertisingManagerClient*>(
+          bluez::BluezDBusManager::Get()
+              ->GetBluetoothLEAdvertisingManagerClient());
+
+  // Creates and registers multiple advertisements.
+  scoped_refptr<BluetoothAdvertisement> advertisement1 = CreateAdvertisement();
+  ExpectSuccess();
+  EXPECT_TRUE(advertisement1);
+  scoped_refptr<BluetoothAdvertisement> advertisement2 = CreateAdvertisement();
+  ExpectSuccess();
+  EXPECT_TRUE(advertisement2);
+  // There should be 2 currently registered advertisements.
+  EXPECT_EQ(2, adv_client->currently_registered());
+
+  adapter_->ResetAdvertising(
+      base::Bind(&BluetoothAdvertisementBlueZTest::Callback,
+                 base::Unretained(this)),
+      base::Bind(&BluetoothAdvertisementBlueZTest::AdvertisementErrorCallback,
+                 base::Unretained(this)));
+  ExpectSuccess();
+
+  // Checks that the advertisements have been cleared after ResetAdvertising.
+  EXPECT_EQ(0, adv_client->currently_registered());
+}
+
 }  // namespace bluez