[CrOS Tether] Refactor BleScanner so that it takes a BluetoothAdapter in its constructor instead of…

chromeos/components/tether/ble_connection_manager_unittest.cc

 // Copyright 2016 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 "chromeos/components/tether/ble_connection_manager.h"
 
 #include "base/logging.h"
 #include "base/timer/mock_timer.h"
 #include "chromeos/components/tether/ble_constants.h"
 #include "chromeos/components/tether/proto/tether.pb.h"
@@ skipping 75 matching lines @@
     return received_messages_;
   }
 
  private:
   std::vector<SecureChannelStatusChange> connection_status_changes_;
   std::vector<ReceivedMessage> received_messages_;
 };
 
 class MockBleScanner : public BleScanner {
  public:
-  MockBleScanner() : BleScanner(nullptr) {}
+  MockBleScanner(scoped_refptr<device::BluetoothAdapter> adapter)
+      : BleScanner(adapter, nullptr) {}
   ~MockBleScanner() override {}
 
   MOCK_METHOD1(RegisterScanFilterForDevice,
                bool(const cryptauth::RemoteDevice&));
   MOCK_METHOD1(UnregisterScanFilterForDevice,
                bool(const cryptauth::RemoteDevice&));
 
   void SimulateScanResults(const std::string& device_address,
                            const cryptauth::RemoteDevice& remote_device) {
     for (auto& observer : observer_list_) {
@@ skipping 137 matching lines @@
 
   void SetUp() override {
     verified_status_changes_.clear();
     verified_received_messages_.clear();
 
     fake_cryptauth_service_ =
         base::MakeUnique<cryptauth::FakeCryptAuthService>();
     mock_adapter_ =
         make_scoped_refptr(new NiceMock<device::MockBluetoothAdapter>());
 
-    mock_ble_scanner_ = new MockBleScanner();
+    mock_ble_scanner_ = new MockBleScanner(mock_adapter_);
     ON_CALL(*mock_ble_scanner_, RegisterScanFilterForDevice(_))
         .WillByDefault(Return(true));
     ON_CALL(*mock_ble_scanner_, UnregisterScanFilterForDevice(_))
         .WillByDefault(Return(true));
 
     mock_ble_advertiser_ = new MockBleAdvertiser();
     ON_CALL(*mock_ble_advertiser_, StartAdvertisingToDevice(_))
         .WillByDefault(Return(true));
     ON_CALL(*mock_ble_advertiser_, StopAdvertisingToDevice(_))
         .WillByDefault(Return(true));
@@ skipping 945 matching lines @@
        cryptauth::SecureChannel::Status::DISCONNECTED},
       {test_devices_[1], cryptauth::SecureChannel::Status::CONNECTING,
        cryptauth::SecureChannel::Status::DISCONNECTED},
       {test_devices_[2], cryptauth::SecureChannel::Status::CONNECTING,
        cryptauth::SecureChannel::Status::DISCONNECTED}});
 }
 
 }  // namespace tether
 
 }  // namespace cryptauth