From 68be67ab4f0a4f27eee203b70c6b25ba5277707c Mon Sep 17 00:00:00 2001
From: Jim Graham <flar@google.com>
Date: Wed, 22 Feb 2023 12:33:37 -0800
Subject: [PATCH] save/restore around clipping the (potentially cached) frame
 canvas

---
 .../darwin/ios/framework/Source/FlutterPlatformViews.mm        | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/shell/platform/darwin/ios/framework/Source/FlutterPlatformViews.mm b/shell/platform/darwin/ios/framework/Source/FlutterPlatformViews.mm
index 880d07fb97aa3..7bdf4c0aaec6d 100644
--- a/shell/platform/darwin/ios/framework/Source/FlutterPlatformViews.mm
+++ b/shell/platform/darwin/ios/framework/Source/FlutterPlatformViews.mm
@@ -821,6 +821,8 @@ static bool ClipRRectContainsPlatformViewBoundingRect(const SkRRect& clip_rrect,
     return layer;
   }
   SkCanvas* overlay_canvas = frame->SkiaCanvas();
+  int restore_count = overlay_canvas->getSaveCount();
+  overlay_canvas->save();
   overlay_canvas->clipRect(rect);
   overlay_canvas->clear(SK_ColorTRANSPARENT);
   if (frame->GetDisplayListBuilder()) {
@@ -828,6 +830,7 @@ static bool ClipRRectContainsPlatformViewBoundingRect(const SkRRect& clip_rrect,
   } else {
     slice->render_into(overlay_canvas);
   }
+  overlay_canvas->restoreToCount(restore_count);
 
   layer->did_submit_last_frame = frame->Submit();
   return layer;