From f9acfc22520d984296237659ab300bbb48599835 Mon Sep 17 00:00:00 2001
From: CezaryKulakowski <50166166+CezaryKulakowski@users.noreply.github.com>
Date: Thu, 26 Mar 2020 20:54:11 +0100
Subject: [PATCH] fix: don't try to hide host which has set flag
 disable_hidden_ (#22832)

Lack of this change will lead to freeze after call to hide/show
on window which has set flag disable_hidden_. To reproduce the
problem it's necessary to create some number of windows (how many
it depends on number of windows being cached by Chromium's
FrameEvictionManager).
---
 patches/chromium/disable_hidden.patch | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/patches/chromium/disable_hidden.patch b/patches/chromium/disable_hidden.patch
index ff93578efc4b..731aab56c412 100644
--- a/patches/chromium/disable_hidden.patch
+++ b/patches/chromium/disable_hidden.patch
@@ -33,3 +33,17 @@ index 26cf559d4a39307524432947627369c440a76929..b638b04444f36c5cac534e99891858f7
    void set_hung_renderer_delay(const base::TimeDelta& delay) {
      hung_renderer_delay_ = delay;
    }
+
+diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
+index 3e2190700aee..0ccdaa8d037c 100644
+--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
++++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
+@@ -692,7 +692,7 @@ void RenderWidgetHostViewAura::HideImpl() {
+   DCHECK(visibility_ == Visibility::HIDDEN ||
+          visibility_ == Visibility::OCCLUDED);
+ 
+-  if (!host()->is_hidden()) {
++  if (!host()->is_hidden() && !host()->disable_hidden_) {
+     host()->WasHidden();
+     aura::WindowTreeHost* host = window_->GetHost();
+     if (delegated_frame_host_) {