app: [X11] don't recreate EGL surface during resize

According to #565 X11 GPU drivers don't deal well with recreation of
EGL surfaces.

Thanks to Walter Schneider for debugging this issue and coming up with
the original patch.

Fixes: https://todo.sr.ht/~eliasnaur/gio/565
Co-authored-by: Walter Werner SCHNEIDER <contact@schnwalter.eu>
Signed-off-by: Elias Naur <mail@eliasnaur.com>

app/egl_android.go

@@ -17,9 +17,8 @@ import (
 )
 
 type androidContext struct {
-	win           *window
-	eglSurf       egl.NativeWindowType
-	width, height int
+	win     *window
+	eglSurf egl.NativeWindowType
 	*egl.Context
 }
 
@@ -45,9 +44,8 @@ func (c *androidContext) Refresh() error {
 	if err := c.win.setVisual(c.Context.VisualID()); err != nil {
 		return err
 	}
-	win, width, height := c.win.nativeWindow()
+	win, _, _ := c.win.nativeWindow()
 	c.eglSurf = egl.NativeWindowType(unsafe.Pointer(win))
-	c.width, c.height = width, height
 	return nil
 }
 
@@ -55,7 +53,7 @@ func (c *androidContext) Lock() error {
 	// The Android emulator creates a broken surface if it is not
 	// created on the same thread as the context is made current.
 	if c.eglSurf != nil {
-		if err := c.Context.CreateSurface(c.eglSurf, c.width, c.height); err != nil {
+		if err := c.Context.CreateSurface(c.eglSurf); err != nil {
 			return err
 		}
 		c.eglSurf = nil