Provide a way for iterating through all external strings referenced from the JS heap

src/heap-profiler.h

Index: src/heap-profiler.h
===================================================================
--- src/heap-profiler.h	(revision 10391)
+++ src/heap-profiler.h	(working copy)
@@ -73,6 +73,13 @@
     return snapshots_->is_tracking_objects();
   }
 
+  class ExternalResourceVisitor {

[mnaganov (inactive), 2012/01/11 18:50:23]

Do you really need this class? What's wrong with using the one you have defined
in the API?

[yurys, 2012/01/11 19:50:13]

Done. I thought we try to work only with internal classes in the code under src/

+   public:
+    virtual void VisitExternalString(String* string) = 0;
+    virtual ~ExternalResourceVisitor() {}
+  };
+  static void VisitExternalResources(ExternalResourceVisitor* visitor);

[mnaganov (inactive), 2012/01/11 18:50:23]

The same is for the implementation. Perhaps, put this into heap.cc?

[yurys, 2012/01/11 19:50:13]

Done.

+
  private:
   HeapProfiler();
   ~HeapProfiler();