Bug 1797301 - Move Utility process to check preloading failures r=nika

Differential Revision: https://phabricator.services.mozilla.com/D160686

ipc/glue/UtilityAudioDecoderParent.cpp

@@ -18,6 +18,7 @@
 #  include "WMFUtils.h"
 
 #  include "mozilla/sandboxTarget.h"
+#  include "mozilla/ipc/UtilityProcessImpl.h"
 #endif  // defined(XP_WIN) && defined(MOZ_SANDBOX)
 
 #ifdef MOZ_WIDGET_ANDROID
@@ -69,20 +70,20 @@ void UtilityAudioDecoderParent::GenericPreloadForSandbox() {
 #if defined(MOZ_SANDBOX) && defined(OS_WIN)
   // Preload AV dlls so we can enable Binary Signature Policy
   // to restrict further dll loads.
-  ::LoadLibraryW(L"mozavcodec.dll");
-  ::LoadLibraryW(L"mozavutil.dll");
+  UtilityProcessImpl::LoadLibraryOrCrash(L"mozavcodec.dll");
+  UtilityProcessImpl::LoadLibraryOrCrash(L"mozavutil.dll");
 #endif  // defined(MOZ_SANDBOX) && defined(OS_WIN)
 }
 
 /* static */
 void UtilityAudioDecoderParent::WMFPreloadForSandbox() {
 #if defined(MOZ_SANDBOX) && defined(OS_WIN)
-  ::LoadLibraryW(L"mfplat.dll");
-  ::LoadLibraryW(L"mf.dll");
+  UtilityProcessImpl::LoadLibraryOrCrash(L"mfplat.dll");
+  UtilityProcessImpl::LoadLibraryOrCrash(L"mf.dll");
 
 #  if defined(DEBUG)
   // WMF Shutdown on debug build somehow requires this
-  ::LoadLibraryW(L"ole32.dll");
+  UtilityProcessImpl::LoadLibraryOrCrash(L"ole32.dll");
 #  endif  // defined(DEBUG)
 
   auto rv = wmf::MediaFoundationInitializer::HasInitialized();

ipc/glue/UtilityProcessImpl.cpp

@@ -46,7 +46,7 @@ bool UtilityProcessImpl::Init(int aArgc, char* aArgv[]) {
   // We delay load winmm.dll so that its dependencies don't interfere with COM
   // initialization when win32k is locked down. We need to load it before we
   // lower the sandbox in processes where the policy will prevent loading.
-  ::LoadLibraryW(L"winmm.dll");
+  LoadLibraryOrCrash(L"winmm.dll");
 
   if (*sandboxingKind == SandboxingKind::GENERIC_UTILITY) {
     // Preload audio generic libraries required for ffmpeg only