tor-browser

commit 40834c6a92e4d2e347bad49223335c94a57ece33
parent b3f78b103d823238752b5832190be7d4220582e1
Author: Cristina Horotan <chorotan@mozilla.com>
Date:   Sat, 15 Nov 2025 10:43:14 +0200

Revert "Bug 1993474 - remove WS_BORDER to fix border issues with Windows App SDK r=win-reviewers,handyman" for causing bc failures on browser_test_fullscreen_size.js

This reverts commit 569ef287466f189b92605efa761d6524a24037ff.

Diffstat:
M
widget/windows/nsWindow.cpp
 | 
19
-------------------

1 file changed, 0 insertions(+), 19 deletions(-)
diff --git a/widget/windows/nsWindow.cpp b/widget/windows/nsWindow.cpp
@@ -2828,25 +2828,6 @@ void nsWindow::SetCustomTitlebar(bool aCustomTitlebar) {
 
   mCustomNonClient = aCustomTitlebar;
 
-  // Because of bug 1993474, we want to properly set the WS_BORDER style
-  // when the titlebar is turned on or off.
-  //
-  // The documentation for window styles says that most styles can't be
-  // modified after the window is created. Testing shows that WS_BORDER
-  // seems to be OK, but make sure this is the only style we try to change
-  // here.
-  const LONG_PTR actualStyle = ::GetWindowLongPtrW(mWnd, GWL_STYLE);
-  LONG_PTR newStyle = actualStyle;
-  if (mCustomNonClient) {
-    newStyle &= ~WS_BORDER;
-  } else {
-    newStyle |= WS_BORDER;
-  }
-  if (newStyle != actualStyle) {
-    VERIFY_WINDOW_STYLE(newStyle);
-    ::SetWindowLongPtrW(mWnd, GWL_STYLE, newStyle);
-  }
-
   // Force a reflow of content based on the new client dimensions.
   if (mCustomNonClient) {
     UpdateNonClientMargins();