There should be no user-noticeable delay when closing a tab

https://bugs.webkit.org/show_bug.cgi?id=205069
<rdar://problem/57797494>

Reviewed by Ryosuke Niwa.

There should be no user-noticeable delay when closing a tab. To achieve this, use a timeout of 50ms for doing the
IPC handshake with the WebContent process, instead of 500ms.

* UIProcess/WebPageProxy.cpp:


Canonical link: https://commits.webkit.org/218331@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@253395 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebKit/ChangeLog

@@ -1,3 +1,16 @@
+2019-12-11  Chris Dumez  <cdumez@apple.com>
+
+        There should be no user-noticeable delay when closing a tab
+        https://bugs.webkit.org/show_bug.cgi?id=205069
+        <rdar://problem/57797494>
+
+        Reviewed by Ryosuke Niwa.
+
+        There should be no user-noticeable delay when closing a tab. To achieve this, use a timeout of 50ms for doing the
+        IPC handshake with the WebContent process, instead of 500ms.
+
+        * UIProcess/WebPageProxy.cpp:
+
 2019-12-11  Chris Dumez  <cdumez@apple.com>
 
         [iOS] Issue load sooner on swipe back/forward navigation

Source/WebKit/UIProcess/WebPageProxy.cpp

@@ -276,7 +276,7 @@ static const unsigned wheelEventQueueSizeThreshold = 10;
 static const Seconds resetRecentCrashCountDelay = 30_s;
 static unsigned maximumWebProcessRelaunchAttempts = 1;
 static const Seconds audibleActivityClearDelay = 10_s;
-static const Seconds tryCloseTimeoutDelay = 500_ms;
+static const Seconds tryCloseTimeoutDelay = 50_ms;
 
 namespace WebKit {
 using namespace WebCore;