Pin shell32.dll in utility processes

This is a change we made to Edge to pin shell32.dll so it will not be
unloaded, due to an OS bug where it would be unloaded while still in
use.

Bug: 1076771,1075487,1139752
Change-Id: I836ddb663ca6d76984186306023ec2a47f9d8fdf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2505835Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Stefan Smolen <ssmole@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#822884}

content/utility/utility_main.cc

@@ -155,6 +155,12 @@ int UtilityMain(const MainFunctionParams& parameters) {
 #if defined(OS_WIN)
   auto sandbox_type =
       sandbox::policy::SandboxTypeFromCommandLine(parameters.command_line);
+
+  // https://crbug.com/1076771 https://crbug.com/1075487 Premature unload of
+  // shell32 caused process to crash during process shutdown.
+  HMODULE shell32_pin = ::LoadLibrary(L"shell32.dll");
+  UNREFERENCED_PARAMETER(shell32_pin);
+
   if (!sandbox::policy::IsUnsandboxedSandboxType(sandbox_type) &&
       sandbox_type != sandbox::policy::SandboxType::kCdm) {
     if (!g_utility_target_services)