Add Bluetooth device type icons on the device list in system tray.

ash/system/tray/system_tray_delegate.cc

Index: ash/system/tray/system_tray_delegate.cc
diff --git a/ash/system/tray/system_tray_delegate.cc b/ash/system/tray/system_tray_delegate.cc
index 92469dc0b28f7045cc09bf6b245dfc7f17238b2f..04b76d0d609341b0da4401ae64db1f24320f4dfe 100644
--- a/ash/system/tray/system_tray_delegate.cc
+++ b/ash/system/tray/system_tray_delegate.cc
@@ -16,12 +16,19 @@ NetworkIconInfo::NetworkIconInfo()
 NetworkIconInfo::~NetworkIconInfo() {
 }
 
+#if defined(OS_CHROMEOS)
 BluetoothDeviceInfo::BluetoothDeviceInfo()
-    : connected(false), connecting(false), paired(false) {
-}
+    : device_type(device::BluetoothDevice::DEVICE_UNKNOWN),
+      connected(false),
+      connecting(false),
+      paired(false) {}
+
+BluetoothDeviceInfo::BluetoothDeviceInfo(const BluetoothDeviceInfo& other) =
+    default;
 
 BluetoothDeviceInfo::~BluetoothDeviceInfo() {
 }
+#endif
 
 IMEInfo::IMEInfo() : selected(false), third_party(false) {
 }