--- a/dom/media/Benchmark.cpp
+++ b/dom/media/Benchmark.cpp
@@ -5,20 +5,22 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "Benchmark.h"
 #include "BufferMediaResource.h"
 #include "MediaData.h"
 #include "MediaPrefs.h"
 #include "PDMFactory.h"
 #include "WebMDemuxer.h"
+#include "gfxPrefs.h"
 #include "mozilla/AbstractThread.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/Telemetry.h"
 #include "mozilla/dom/ContentChild.h"
+#include "mozilla/gfx/gfxVars.h"
 
 #ifndef MOZ_WIDGET_ANDROID
 #include "WebMSample.h"
 #endif
 
 namespace mozilla {
 
 // Update this version number to force re-running the benchmark. Such as when
@@ -131,17 +133,18 @@ Benchmark::Dispose()
   mKeepAliveUntilComplete = nullptr;
   mPromise.RejectIfExists(false, __func__);
 }
 
 void
 Benchmark::Init()
 {
   MOZ_ASSERT(NS_IsMainThread());
-
+  gfxVars::Initialize();
+  gfxPrefs::GetSingleton();
   MediaPrefs::GetSingleton();
 }
 
 BenchmarkPlayback::BenchmarkPlayback(Benchmark* aMainThreadState,
                                      MediaDataDemuxer* aDemuxer)
   : QueueObject(new TaskQueue(GetMediaThreadPool(MediaThreadType::PLAYBACK)))
   , mMainThreadState(aMainThreadState)
   , mDecoderTaskQueue(new TaskQueue(GetMediaThreadPool(