Bug 1404305 - Include nsCOMArray.h and SystemGroup in nsThreadPool.cpp to fix the build in non-unified mode. r=froydnj

MozReview-Commit-ID: 1bZHw4TS9L1

--HG--
extra : rebase_source : 8ee48871ab0ae82c70ce7eb3bd64e0497891fc97

xpcom/threads/nsThreadPool.cpp

@@ -4,6 +4,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+#include "nsCOMArray.h"
 #include "nsIClassInfoImpl.h"
 #include "nsThreadPool.h"
 #include "nsThreadManager.h"
@@ -12,6 +13,7 @@
 #include "nsAutoPtr.h"
 #include "prinrval.h"
 #include "mozilla/Logging.h"
+#include "mozilla/SystemGroup.h"
 #include "nsThreadSyncDispatch.h"
 
 using namespace mozilla;