bluetooth: Call GattCharacteristicValueChanged after a read succeeds

device/bluetooth/test/test_bluetooth_adapter_observer.h

 // Copyright 2015 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.
 
 #ifndef DEVICE_BLUETOOTH_TEST_TEST_BLUETOOTH_ADAPTER_OBSERVER_H_
 #define DEVICE_BLUETOOTH_TEST_TEST_BLUETOOTH_ADAPTER_OBSERVER_H_
 
 #include <stdint.h>
 #include <string>
 #include <vector>
@@ skipping 94 matching lines @@
     return gatt_services_discovered_count_;
   }
   int gatt_service_changed_count() { return gatt_service_changed_count_; }
   int gatt_discovery_complete_count() { return gatt_discovery_complete_count_; }
   int gatt_characteristic_added_count() {
     return gatt_characteristic_added_count_;
   }
   int gatt_characteristic_removed_count() {
     return gatt_characteristic_removed_count_;
   }
-  int gatt_characteristic_value_changed_count() {
+  int gatt_characteristic_value_changed_count() const {
     return gatt_characteristic_value_changed_count_;
   }
   int gatt_descriptor_added_count() { return gatt_descriptor_added_count_; }
   int gatt_descriptor_removed_count() { return gatt_descriptor_removed_count_; }
   int gatt_descriptor_value_changed_count() {
     return gatt_descriptor_value_changed_count_;
   }
   std::string last_gatt_service_id() { return last_gatt_service_id_; }
   BluetoothUUID last_gatt_service_uuid() { return last_gatt_service_uuid_; }
   std::string last_gatt_characteristic_id() {
@@ skipping 61 matching lines @@
   std::string last_gatt_descriptor_id_;
   BluetoothUUID last_gatt_descriptor_uuid_;
   std::vector<uint8_t> last_changed_descriptor_value_;
 
   DISALLOW_COPY_AND_ASSIGN(TestBluetoothAdapterObserver);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_TEST_TEST_BLUETOOTH_ADAPTER_OBSERVER_H_