1 files changed, 57 insertions, 0 deletions
diff --git a/layout/generic/FrameChildList.cpp b/layout/generic/FrameChildList.cpp
new file mode 100644
index 0000000000..7c940d9369
--- /dev/null
+++ b/layout/generic/FrameChildList.cpp
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * 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 "mozilla/layout/FrameChildList.h"
+
+#include "nsIFrame.h"
+
+namespace mozilla {
+namespace layout {
+
+#ifdef DEBUG_FRAME_DUMP
+const char* ChildListName(FrameChildListID aListID) {
+  switch (aListID) {
+    case kPrincipalList:
+      return "";
+    case kPopupList:
+      return "PopupList";
+    case kCaptionList:
+      return "CaptionList";
+    case kColGroupList:
+      return "ColGroupList";
+    case kSelectPopupList:
+      return "SelectPopupList";
+    case kAbsoluteList:
+      return "AbsoluteList";
+    case kFixedList:
+      return "FixedList";
+    case kOverflowList:
+      return "OverflowList";
+    case kOverflowContainersList:
+      return "OverflowContainersList";
+    case kExcessOverflowContainersList:
+      return "ExcessOverflowContainersList";
+    case kOverflowOutOfFlowList:
+      return "OverflowOutOfFlowList";
+    case kFloatList:
+      return "FloatList";
+    case kBulletList:
+      return "BulletList";
+    case kPushedFloatsList:
+      return "PushedFloatsList";
+    case kBackdropList:
+      return "BackdropList";
+    case kNoReflowPrincipalList:
+      return "NoReflowPrincipalList";
+  }
+
+  MOZ_ASSERT_UNREACHABLE("unknown list");
+  return "UNKNOWN_FRAME_CHILD_LIST";
+}
+#endif
+
+}  // namespace layout
+}  // namespace mozilla