Add the chrome.bluetoothLowEnergy.setAdvertisingInterval API.

device/bluetooth/bluetooth_adapter_unittest.cc

Index: device/bluetooth/bluetooth_adapter_unittest.cc
diff --git a/device/bluetooth/bluetooth_adapter_unittest.cc b/device/bluetooth/bluetooth_adapter_unittest.cc
index 0d91483fbf44a0f275987c8bd92976be755f3917..24a77b7f51ab66dec6ec0ffa936877f4c261624d 100644
--- a/device/bluetooth/bluetooth_adapter_unittest.cc
+++ b/device/bluetooth/bluetooth_adapter_unittest.cc
@@ -102,7 +102,15 @@ class TestBluetoothAdapter : public BluetoothAdapter {
   void RegisterAdvertisement(
       std::unique_ptr<BluetoothAdvertisement::Data> advertisement_data,
       const CreateAdvertisementCallback& callback,
-      const CreateAdvertisementErrorCallback& error_callback) override {}
+      const AdvertisementErrorCallback& error_callback) override {}
+
+#if defined(OS_CHROMEOS) || defined(OS_LINUX)
+  void SetAdvertisingInterval(
+      const base::TimeDelta& min,
+      const base::TimeDelta& max,
+      const base::Closure& callback,
+      const AdvertisementErrorCallback& error_callback) override {}
+#endif
 
   BluetoothLocalGattService* GetGattService(
       const std::string& identifier) const override {