Disable WebSocket ping (#428)

* Disable WebSocket ping

* Obsoletes

Author: kblok

lib/PuppeteerSharp/ConnectOptions.cs

@@ -1,4 +1,6 @@
-namespace PuppeteerSharp
+using System;
+
+namespace PuppeteerSharp
 {
     /// <summary>
     /// Options for connecting to an existing browser.
@@ -28,6 +30,7 @@ public class ConnectOptions : IBrowserOptions
         /// <summary>
         /// Keep alive value.
         /// </summary>
-        public int KeepAliveInterval { get; set; } = 30;
+        [Obsolete("Chromium doesn't support pings yet (see: https://bugs.chromium.org/p/chromium/issues/detail?id=865002)")]
+        public int KeepAliveInterval { get; set; } = 0;
     }
-}
+}

lib/PuppeteerSharp/LaunchOptions.cs

@@ -70,7 +70,8 @@ public class LaunchOptions : IBrowserOptions
         /// <summary>
         /// Keep alive value.
         /// </summary>
-        public int KeepAliveInterval { get; set; } = 30;
+        [Obsolete("Chromium doesn't support pings yet (see: https://bugs.chromium.org/p/chromium/issues/detail?id=865002)")]
+        public int KeepAliveInterval { get; set; } = 0;
 
         /// <summary>
         /// Logs process counts after launching chrome and after exiting.

lib/PuppeteerSharp/Launcher.cs

@@ -114,7 +114,7 @@ public async Task<Browser> LaunchAsync(LaunchOptions options)
             {
                 var connectionDelay = options.SlowMo;
                 var browserWSEndpoint = await WaitForEndpoint(_chromeProcess, options.Timeout);
-                var keepAliveInterval = options.KeepAliveInterval;
+                var keepAliveInterval = 0;
 
                 _connection = await Connection.Create(browserWSEndpoint, connectionDelay, keepAliveInterval, _loggerFactory);
                 _processLoaded = true;
@@ -149,7 +149,7 @@ public async Task<Browser> ConnectAsync(ConnectOptions options)
                 _chromiumLaunched = true;
 
                 var connectionDelay = options.SlowMo;
-                var keepAliveInterval = options.KeepAliveInterval;
+                var keepAliveInterval = 0;
 
                 _connection = await Connection.Create(options.BrowserWSEndpoint, connectionDelay, keepAliveInterval, _loggerFactory);