[Tts] Make SynthesizedPcmEventArgs inherit System.EventArgs (#5540)

Signed-off-by: Suyeon Hwang <stom.hwang@samsung.com>

diff --git a/src/Tizen.Uix.Tts/Tizen.Uix.Tts/SynthesizedPcmEventArgs.cs b/src/Tizen.Uix.Tts/Tizen.Uix.Tts/SynthesizedPcmEventArgs.cs
index 5669570..33c7332 100644 (file)
--- a/src/Tizen.Uix.Tts/Tizen.Uix.Tts/SynthesizedPcmEventArgs.cs
+++ b/src/Tizen.Uix.Tts/Tizen.Uix.Tts/SynthesizedPcmEventArgs.cs
@@ -15,13 +15,15 @@
 */
 
 
+using System;
+
 namespace Tizen.Uix.Tts
 {
     /// <summary>
     /// This class holds information related to the TTS SynthesizedPcm event.
     /// </summary>
     /// <since_tizen> 11 </since_tizen>
-    public class SynthesizedPcmEventArgs
+    public class SynthesizedPcmEventArgs : EventArgs
     {
         internal SynthesizedPcmEventArgs(int utteranceId, SynthesizedPcmEvent synthesizedPcmEvent, byte[] data, AudioType audioType, int sampleRate)
         {