[gtk/wip/chergert/macos-iosurface] macos: only invalidate tiles when size changes

[Christian Hergert <chergert src gnome org>]

commit 99439cb40e7de5a6745898ddf28fff1dfa1516fc
Author: Christian Hergert <christian hergert me>
Date:   Tue Feb 22 00:51:53 2022 -0800

    macos: only invalidate tiles when size changes
    
    If the size changes, we need to relayout the tiles. Otherwise we can keep
    using what we had before. Generally, that shouldn't happen, but the
    previous check was failing in a number of ways.

 gdk/macos/GdkMacosLayer.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/gdk/macos/GdkMacosLayer.c b/gdk/macos/GdkMacosLayer.c
index 4b723566d0..4de47a5658 100644
--- a/gdk/macos/GdkMacosLayer.c
+++ b/gdk/macos/GdkMacosLayer.c
@@ -317,13 +317,14 @@ fromCGRect (const CGRect rect)
 
 -(void)setFrame:(NSRect)frame
 {
-  if (CGRectEqualToRect (frame, self.frame))
-    return;
-
-  self->_layoutInvalid = TRUE;
+  if (frame.size.width != self.bounds.size.width ||
+      frame.size.height != self.bounds.size.height)
+    {
+      self->_layoutInvalid = TRUE;
+      [self setNeedsLayout];
+    }
 
   [super setFrame:frame];
-  [self setNeedsLayout];
 }
 
 -(void)setOpaqueRegion:(const cairo_region_t *)opaqueRegion