Squashed 'third_party/allwpilib_2016/' content from commit 7f61816

Change-Id: If9d9245880859cdf580f5d7f77045135d0521ce7
git-subtree-dir: third_party/allwpilib_2016
git-subtree-split: 7f618166ed253a24629934fcf89c3decb0528a3b
diff --git a/wpilibc/shared/src/Commands/WaitForChildren.cpp b/wpilibc/shared/src/Commands/WaitForChildren.cpp
new file mode 100644
index 0000000..a3a129d
--- /dev/null
+++ b/wpilibc/shared/src/Commands/WaitForChildren.cpp
@@ -0,0 +1,27 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2011. All Rights Reserved.
+ */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib.  */
+/*----------------------------------------------------------------------------*/
+
+#include "Commands/WaitForChildren.h"
+#include "Commands/CommandGroup.h"
+
+WaitForChildren::WaitForChildren(double timeout)
+    : Command("WaitForChildren", timeout) {}
+
+WaitForChildren::WaitForChildren(const std::string &name, double timeout)
+    : Command(name, timeout) {}
+
+void WaitForChildren::Initialize() {}
+
+void WaitForChildren::Execute() {}
+
+void WaitForChildren::End() {}
+
+void WaitForChildren::Interrupted() {}
+
+bool WaitForChildren::IsFinished() {
+  return GetGroup() == nullptr || GetGroup()->GetSize() == 0;
+}