Index: content/browser/frame_host/frame_tree_node.h |
diff --git a/content/browser/frame_host/frame_tree_node.h b/content/browser/frame_host/frame_tree_node.h |
index 2cdf527eaa74c0dff125a04bbc7ef1216d273a03..05832b60b10c45424de744737d047c1b0f799ebf 100644 |
--- a/content/browser/frame_host/frame_tree_node.h |
+++ b/content/browser/frame_host/frame_tree_node.h |
@@ -39,6 +39,8 @@ class CONTENT_EXPORT FrameTreeNode { |
virtual ~Observer() {} |
}; |
+ static const int kFrameTreeNodeInvalidID = -1; |
+ |
// Returns the FrameTreeNode with the given global |frame_tree_node_id|, |
// regardless of which FrameTree it is in. |
static FrameTreeNode* GloballyFindByID(int frame_tree_node_id); |