Fix window icon (#831)

* Fix window icon

* Add CHANGELOG entry

CHANGELOG.md

@@ -3,6 +3,7 @@
 - On Windows, fix `CursorMoved(0, 0)` getting dispatched on window focus.
 - On macOS, fix command key event left and right reverse.
 - On FreeBSD, NetBSD, and OpenBSD, fix build of X11 backend.
+- On Windows, fix icon not showing up in corner of window.
 - On X11, change DPI scaling factor behavior. First, winit tries to read it from "Xft.dpi" XResource, and uses DPI calculation from xrandr dimensions as fallback behavior.
 
 # Version 0.19.0 (2019-03-06)

src/platform/windows/window.rs

@@ -625,9 +625,6 @@ unsafe fn init(
                                               format!("{}", io::Error::last_os_error()))));
         }
 
-        winuser::SetWindowLongW(handle, winuser::GWL_STYLE, 0);
-        winuser::SetWindowLongW(handle, winuser::GWL_EXSTYLE, 0);
-
         WindowWrapper(handle)
     };