Fix dangling ptr in RenderProcessHostTaskProvider (fixes #3758)

patch/patch.cfg

@@ -744,5 +744,11 @@ patches = [
     # Windows: Add missing check in base/profiler/stack_copier.cc to fix
     # compilation error of cef_sandbox.
     'name': 'win_sandbox_stack_copier'
+  },
+  {
+    # Fix dangling RenderProcessHost ptr in RenderProcessHostTaskProvider.
+    # https://github.com/chromiumembedded/cef/issues/3758
+    # https://chromium-review.googlesource.com/c/chromium/src/+/5894650
+    'name': 'chrome_browser_task_manager_5894650'
   }
 ]

patch/patches/chrome_browser_task_manager_5894650.patch

@@ -0,0 +1,27 @@
+diff --git chrome/browser/task_manager/providers/render_process_host_task_provider.cc chrome/browser/task_manager/providers/render_process_host_task_provider.cc
+index 11b05cbfc6077..45a5b11158a21 100644
+--- chrome/browser/task_manager/providers/render_process_host_task_provider.cc
++++ chrome/browser/task_manager/providers/render_process_host_task_provider.cc
+@@ -110,18 +110,14 @@ void RenderProcessHostTaskProvider::OnRenderProcessHostCreated(
+ void RenderProcessHostTaskProvider::RenderProcessExited(
+     content::RenderProcessHost* host,
+     const content::ChildProcessTerminationInfo& info) {
+-  if (is_updating_) {
+-    DeleteTask(host->GetID());
+-    host_observation_.RemoveObservation(host);
+-  }
++  DeleteTask(host->GetID());
++  host_observation_.RemoveObservation(host);
+ }
+ 
+ void RenderProcessHostTaskProvider::RenderProcessHostDestroyed(
+     content::RenderProcessHost* host) {
+-  if (is_updating_) {
+-    DeleteTask(host->GetID());
+-    host_observation_.RemoveObservation(host);
+-  }
++  DeleteTask(host->GetID());
++  host_observation_.RemoveObservation(host);
+ }
+ 
+ }  // namespace task_manager