<AWT Dev> [11] Review request for 8198606: Touch keyboard does not hide, when a text component looses focus

[Anton Litvinov]

Hello,

Could you please review the following fix for the bug.

Bug: https://bugs.openjdk.java.net/browse/JDK-8198606
Webrev: http://cr.openjdk.java.net/~alitvinov/8198606/jdk11/webrev.00

The root cause of the bug is the fact that starting from one of the last 
updates of MS Windows 10 the window of the touch keyboard does not have 
the style "WS_VISIBLE", even when it is really visible, and the method 
"AwtToolkit::HideTouchKeyboard()" does not execute the code hiding the 
touch keyboard, because the method 
"AwtToolkit::GetTouchKeyboardWindow()" return "NULL", since one of its 
conditions, particularly "::IsWindowVisible(hwnd)", where "hwnd" is a 
handle of the touch keyboard window, currently always returns "FALSE".

The fix for this bug removes this extra "if" condition from the method 
"AwtToolkit::GetTouchKeyboardWindow()", which in current circumstances 
is always evaluated as "FALSE".

Thank you,
Anton