bluetooth: android: Disconnect GATT upon BluetoothDeviceAndroid object destruction.

device/bluetooth/bluetooth_device_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "device/bluetooth/bluetooth_device.h"
 
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 162 matching lines @@
 
   // Disconnect & Delete connection objects. Device stays connected.
   gatt_connections_[0]->Disconnect();  // Disconnect first.
   gatt_connections_.pop_back();        // Delete last.
   EXPECT_FALSE(gatt_connections_[0]->IsConnected());
   EXPECT_TRUE(gatt_connections_[1]->IsConnected());
   EXPECT_TRUE(device->IsGattConnected());
   EXPECT_EQ(0, gatt_disconnection_attempt_count_);
 
   // Delete device, connection objects should all be disconnected.
+  gatt_disconnection_attempt_count_ = 0;
   DeleteDevice(device);
+  EXPECT_EQ(1, gatt_disconnection_attempt_count_);
   EXPECT_FALSE(gatt_connections_[0]->IsConnected());
   EXPECT_FALSE(gatt_connections_[1]->IsConnected());
 
   // Test GetDeviceAddress after device deleted.
   EXPECT_EQ(device_address, gatt_connections_[0]->GetDeviceAddress());
   EXPECT_EQ(device_address, gatt_connections_[1]->GetDeviceAddress());
 }
 #endif  // defined(OS_ANDROID)
 
 #if defined(OS_ANDROID)
@@ skipping 223 matching lines @@
   FailGattConnection(device, BluetoothDevice::ERROR_FAILED);
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_FAILED, last_connect_error_code_);
   for (BluetoothGattConnection* connection : gatt_connections_)
     EXPECT_FALSE(connection->IsConnected());
 }
 #endif  // defined(OS_ANDROID)
 
 }  // namespace device