Bug 1405110 - P2. Never attempts to upload to D3D11 surface in parent process. r=mattwoodrow

Accessing the graphic device driver from the parent process, should the drivers crash have serious consequences (the whole browser dies).

MozReview-Commit-ID: EXXRBnDobQw

--HG--
extra : rebase_source : d5609f1e088c7bbe92d6e46e66e1fb5538d5caac

dom/media/MediaData.cpp

@@ -319,7 +319,8 @@ VideoData::CreateAndCopyData(const VideoInfo& aInfo,
   // Currently our decoder only knows how to output to ImageFormat::PLANAR_YCBCR
   // format.
 #if XP_WIN
-  if (aAllocator && aAllocator->GetCompositorBackendType()
+  if (!XRE_IsParentProcess() &&
+      aAllocator && aAllocator->GetCompositorBackendType()
                     == layers::LayersBackend::LAYERS_D3D11) {
     RefPtr<layers::D3D11YCbCrImage> d3d11Image = new layers::D3D11YCbCrImage();
     PlanarYCbCrData data = ConstructPlanarYCbCrData(aInfo, aBuffer, aPicture);