Example Bluetooth ARC++ test changes.

components/arc/bluetooth/arc_bluetooth_bridge.h

Index: components/arc/bluetooth/arc_bluetooth_bridge.h
diff --git a/components/arc/bluetooth/arc_bluetooth_bridge.h b/components/arc/bluetooth/arc_bluetooth_bridge.h
index d2396456ab32243548d56f655395374a368c4ff8..81b120bc7aece4febf1f54ba903c71d3d5daaf1c 100644
--- a/components/arc/bluetooth/arc_bluetooth_bridge.h
+++ b/components/arc/bluetooth/arc_bluetooth_bridge.h
@@ -36,7 +36,6 @@ class ArcBluetoothBridge
       public mojom::BluetoothHost {
  public:
   explicit ArcBluetoothBridge(ArcBridgeService* bridge_service);
-  ArcBluetoothBridge(ArcBridgeService* bridge_service, bool test_flag);
   ~ArcBluetoothBridge() override;
 
   // Overridden from ArcBridgeService::Observer:
@@ -252,20 +251,6 @@ class ArcBluetoothBridge
   void OnGattNotifyStopDone(
       const DeregisterForGattNotificationCallback& callback) const;
 
-  // Exposed for testing.
-  void SetAdapterForTest(device::BluetoothAdapter* adapter) {
-    bluetooth_adapter_ = adapter;
-  }
-
-  void SetBluetoothInstanceForTest(
-      mojom::BluetoothInstance* bluetooth_instance) {
-    bluetooth_instance_ = base::WrapUnique(bluetooth_instance);
-  }
-
-  void SetBluetoothVersionForTest(int32_t bluetooth_version) {
-    bluetooth_version_ = bluetooth_version;
-  }
-
  private:
   mojo::Array<mojom::BluetoothPropertyPtr> GetDeviceProperties(
       mojom::BluetoothPropertyType type,
@@ -298,8 +283,6 @@ class ArcBluetoothBridge
   mojo::Binding<mojom::BluetoothHost> binding_;
 
   scoped_refptr<device::BluetoothAdapter> bluetooth_adapter_;
-  std::unique_ptr<mojom::BluetoothInstance> bluetooth_instance_;
-  int32_t bluetooth_version_;
   scoped_refptr<device::BluetoothAdvertisement> advertisment_;
   std::unique_ptr<device::BluetoothDiscoverySession> discovery_session_;
   std::map<std::string, std::unique_ptr<device::BluetoothGattNotifySession>>