Experimental: periodic merge from the bleeding edge branch to the code...

src/log.h

Index: src/log.h
===================================================================
--- src/log.h	(revision 1380)
+++ src/log.h	(working copy)
@@ -272,6 +272,17 @@
 };
 
 
+// Class that extracts stack trace, used for profiling
+class StackTracer BASE_EMBEDDED {
+ public:
+  explicit StackTracer(unsigned int low_stack_bound)
+      : low_stack_bound_(low_stack_bound) { }
+  void Trace(TickSample* sample);
+ private:
+  unsigned int low_stack_bound_;
+};
+
+
 } }  // namespace v8::internal
 
 #endif  // V8_LOG_H_