From b0220a3af30954cac1a744d3029199e1d0a6f330 Mon Sep 17 00:00:00 2001
From: Chinmay Garde <chinmaygarde@gmail.com>
Date: Thu, 1 Dec 2016 17:35:40 -0800
Subject: [PATCH] =?UTF-8?q?[iOS]=20Don=E2=80=99t=20perform=20a=20per=20fra?=
 =?UTF-8?q?me=20platform=20to=20UI=20thread=20switch.=20(#3288)?=
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---
 .../darwin/ios/framework/Source/vsync_waiter_ios.mm   | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/shell/platform/darwin/ios/framework/Source/vsync_waiter_ios.mm b/shell/platform/darwin/ios/framework/Source/vsync_waiter_ios.mm
index 6e0a36033..5cb01970d 100644
--- a/shell/platform/darwin/ios/framework/Source/vsync_waiter_ios.mm
+++ b/shell/platform/darwin/ios/framework/Source/vsync_waiter_ios.mm
@@ -32,8 +32,12 @@
         displayLinkWithTarget:self
                      selector:@selector(onDisplayLink:)] retain];
     _displayLink.paused = YES;
-    [_displayLink addToRunLoop:[NSRunLoop currentRunLoop]
-                       forMode:NSRunLoopCommonModes];
+
+    blink::Threads::UI()->PostTask([client = [self retain]]() {
+      [client->_displayLink addToRunLoop:[NSRunLoop currentRunLoop]
+                                 forMode:NSRunLoopCommonModes];
+      [client release];
+    });
   }
 
   return self;
@@ -52,8 +56,7 @@
   _displayLink.paused = YES;
   auto callback = std::move(_pendingCallback);
   _pendingCallback = shell::VsyncWaiter::Callback();
-  blink::Threads::UI()->PostTask(
-      [callback, frame_time] { callback(frame_time); });
+  callback(frame_time);
 }
 
 - (void)dealloc {
-- 
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