Bug 1365516 - Remove the call to AbstractThread::GetCurrent() in WebRenderImageLayer.cpp. r=sotaro

MozReview-Commit-ID: 5UMQuqEMZCu

--HG--
extra : rebase_source : 3572dc4ce88c5d7cfdcd96b57913fa5ef3cb04e9
extra : source : 16c28cad5889952df3c7ec02f292f0bf6861c3e8

gfx/layers/wr/WebRenderImageLayer.cpp

@@ -106,7 +106,7 @@ WebRenderImageLayer::RenderLayer(wr::DisplayListBuilder& aBuilder,
     // And we do not want to use RefPtr<WebRenderImageLayer> here.
     Holder holder(this);
     WrManager()->AllocPipelineId()
-      ->Then(AbstractThread::GetCurrent(), __func__,
+      ->Then(AbstractThread::MainThread(), __func__,
       [holder] (const wr::PipelineId& aPipelineId) {
         holder->mPipelineIdRequest.Complete();
         holder->mPipelineId = Some(aPipelineId);