Followup to bug 570294: Avoid vector::data(), it's not C++98.

--HG--
extra : rebase_source : 66a38bee840b21251dd4cbfca370cf9294745ee3

gfx/layers/ipc/ShadowLayers.cpp

@@ -283,8 +283,9 @@ ShadowLayerForwarder::EndTransaction(nsTArray<EditReply>* aReplies)
   }
 
   nsAutoTArray<Edit, 10> cset;
+  NS_ABORT_IF_FALSE(mTxn->mCset.size() > 0, "should have bailed by now");
   cset.SetCapacity(mTxn->mCset.size());
-  cset.AppendElements(mTxn->mCset.data(), mTxn->mCset.size());
+  cset.AppendElements(&mTxn->mCset.front(), mTxn->mCset.size());
 
   if (!mShadowManager->SendUpdate(cset, aReplies)) {
     MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));

gfx/layers/ipc/ShadowLayersParent.cpp

@@ -367,7 +367,9 @@ ShadowLayersParent::RecvUpdate(const nsTArray<Edit>& cset,
   layer_manager()->EndTransaction(NULL, NULL);
 
   reply->SetCapacity(replyv.size());
-  reply->AppendElements(replyv.data(), replyv.size());
+  if (replyv.size() > 0) {
+    reply->AppendElements(&replyv.front(), replyv.size());
+  }
 
   return true;
 }