A follow-up to r5849 -- fix Chromium build.

TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/5198003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5851 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8-profiler.h

@@ -245,6 +245,7 @@ class V8EXPORT HeapGraphPath {
 class V8EXPORT HeapGraphNode {
  public:
   enum Type {
+    kInternal = 0,   // For compatibility, will be removed.
     kHidden = 0,     // Hidden node, may be filtered when shown to user.
     kArray = 1,      // An array of elements.
     kString = 2,     // A string.