bluetooth: android: Implement Descriptor Write as needed for notifications.

device/bluetooth/test/bluetooth_test_android.h

Index: device/bluetooth/test/bluetooth_test_android.h
diff --git a/device/bluetooth/test/bluetooth_test_android.h b/device/bluetooth/test/bluetooth_test_android.h
index 290faa61a3e5380e5e1329502fecad3bd2c955a5..be11c4c6d8dac195a5de451d8913c4dbd94cb932 100644
--- a/device/bluetooth/test/bluetooth_test_android.h
+++ b/device/bluetooth/test/bluetooth_test_android.h
@@ -64,6 +64,8 @@ class BluetoothTestAndroid : public BluetoothTestBase {
       BluetoothGattCharacteristic* characteristic) override;
   void SimulateGattDescriptor(BluetoothGattCharacteristic* characteristic,
                               const std::string& uuid) override;
+  void SimulateGattDescriptorWriteWillFailSynchronouslyOnce(
+      BluetoothGattDescriptor* descriptor) override;
 
   // Records that Java FakeBluetoothDevice connectGatt was called.
   void OnFakeBluetoothDeviceConnectGattCalled(
@@ -97,6 +99,12 @@ class BluetoothTestAndroid : public BluetoothTestBase {
       const base::android::JavaParamRef<jobject>& caller,
       const base::android::JavaParamRef<jbyteArray>& value);
 
+  // Records that Java FakeBluetoothGatt writeDescriptor was called.
+  void OnFakeBluetoothGattWriteDescriptor(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& caller,
+      const base::android::JavaParamRef<jbyteArray>& value);
+
   base::android::ScopedJavaGlobalRef<jobject> j_fake_bluetooth_adapter_;
 };