Implement BluetoothRemoteGattServiceWin and related unit tests

device/bluetooth/bluetooth_adapter_win.cc

Index: device/bluetooth/bluetooth_adapter_win.cc
diff --git a/device/bluetooth/bluetooth_adapter_win.cc b/device/bluetooth/bluetooth_adapter_win.cc
index 68f781214c74167c9abad8454cb04e27e57f70e8..b9bf321f5ef3bb17c9377e874bd39b72a3796bcf 100644
--- a/device/bluetooth/bluetooth_adapter_win.cc
+++ b/device/bluetooth/bluetooth_adapter_win.cc
@@ -43,8 +43,8 @@ BluetoothAdapterWin::BluetoothAdapterWin(const InitCallback& init_callback)
       powered_(false),
       discovery_status_(NOT_DISCOVERING),
       num_discovery_listeners_(0),
-      weak_ptr_factory_(this) {
-}
+      force_update_device_for_test_(false),
+      weak_ptr_factory_(this) {}
 
 BluetoothAdapterWin::~BluetoothAdapterWin() {
   if (task_manager_.get()) {
@@ -284,10 +284,11 @@ void BluetoothAdapterWin::DevicesPolled(
           static_cast<BluetoothDeviceWin*>(iter->second);
       if (!device_win->IsEqual(*device_state)) {
         device_win->Update(*device_state);
-        FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
-                          observers_,
+        FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
                           DeviceChanged(this, device_win));
       }
+      if (force_update_device_for_test_)

[ortuno, 2016/02/19 17:33:05]

Could you add a comment explaining why tests need this?

[gogerald1, 2016/02/19 22:45:02]

Done.

+        device_win->Update(*device_state);
     }
   }
 }