Transparent Window Shows Chrome on drag Windows 7 64 bit

[RobTur]

======== TEMPLATE BUG FORM ========

NWJS Version : nwjs-v0.27.0-win-x64
Operating System : Windows 7 64 bit

Expected behavior

<!- What do you think should happen? ->
When creating a transparent window with no frame the app should allow drag without displaying or flashing a white toolbar at top of page

Actual behavior

<!- What actually happens? ->
Randomly, but always with the first drag, the app chrome will flash or display at top. (titlebar) on Windows 7 64 bit and Windows 10. This does not occur on Mac.

How to reproduce

<!-
index.html

html
head
/head
body style="background-color:rgba(0,0,0,0.5);-webkit-app-region: drag"
/body
/html

Package.json
{
"name": "Test",
"main": "index.html",
"version": "0.0.1",
"window": {
"toolbar": false,
"transparent": true,
"frame": false,
"title": "TITLE",
"resizable": false,
"fullscreen": false,
"show": true,
"width": 800,
"height": 700
}
}
/*

Run above configuration and drag the app. On Windows 7 64 bit the title bar displays.

->

[Christywl]

Try on Windows with nwjs-sdk-v0.27.2, the title bar appears with the first drag.

Not reproduce on Linux/Mac.

[jtg-gg]

@RobTur I've made a fix, nwjs/chromium.src#104
waiting Roger Wang to merge and make new build

[rogerwang]

This is fixed in git and will be available in the next nightly build.

[RobTur]

@jtg-gg Works great!
Thank you.