[GRC] Correctly Invalidate RenderProcessHost's CU Interface

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index fc876c671daea63b084e640a2cb2fdc474ce576d..b5bb568a70873dd943811c353240323720ea3125 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1778,11 +1778,14 @@ mojom::Renderer* RenderProcessHostImpl::GetRendererInterface() {
 resource_coordinator::ResourceCoordinatorInterface*
 RenderProcessHostImpl::GetProcessResourceCoordinator() {
   if (!process_resource_coordinator_) {
+    base::ProcessHandle process_handle = GetHandle();
+    DCHECK(process_handle);
+
     process_resource_coordinator_ =
         base::MakeUnique<resource_coordinator::ResourceCoordinatorInterface>(
             ServiceManagerConnection::GetForProcess()->GetConnector(),
             resource_coordinator::CoordinationUnitType::kProcess,
-            base::Process(GetHandle()).Pid());
+            base::Process(process_handle).Pid());
   }
   return process_resource_coordinator_.get();
 }
@@ -3201,6 +3204,7 @@ void RenderProcessHostImpl::ProcessDied(bool already_dead,
   if (route_provider_binding_.is_bound())
     route_provider_binding_.Close();
   associated_interfaces_.reset();
+  process_resource_coordinator_.reset();
   ResetChannelProxy();
 
   UpdateProcessPriority();