[debugger] flood function for stepping on throw.

src/debug/debug.h

Index: src/debug/debug.h
diff --git a/src/debug/debug.h b/src/debug/debug.h
index 77451f679818efdaba1b6393ac78ce7c254fc42d..eb6912ca96eed7aa49b5fac8f7d9239ac7acc2a5 100644
--- a/src/debug/debug.h
+++ b/src/debug/debug.h
@@ -404,7 +404,6 @@ class Debug {
   void ClearAllBreakPoints();
   void FloodWithOneShot(Handle<JSFunction> function,
                         BreakLocatorType type = ALL_BREAK_LOCATIONS);
-  void FloodHandlerWithOneShot();
   void ChangeBreakOnException(ExceptionBreakType type, bool enable);
   bool IsBreakOnException(ExceptionBreakType type);
 
@@ -413,6 +412,7 @@ class Debug {
                    int step_count,
                    StackFrame::Id frame_id);
   void PrepareStepIn(Handle<JSFunction> function);
+  void PrepareStepOnThrow();
   void ClearStepping();
   void ClearStepOut();
   void EnableStepIn();