Add DebugMessageDispatchHandler

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 00b590f3ebf0dc92d4e659a421afc88256114246..de0bd7d59253a1f26d4753cbdfb94574f329d6bf 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -3738,6 +3738,14 @@ void Debug::SetHostDispatchHandler(HostDispatchHandler handler,
 }
 
 
+void Debug::SetDebugMessageDispatchHandler(
+    DebugMessageDispatchHandler handler) {
+  EnsureInitialized("v8::Debug::SetDebugMessageDispatchHandler");
+  ENTER_V8;
+  i::Debugger::SetDebugMessageDispatchHandler(handler);
+}
+
+
 Local<Value> Debug::Call(v8::Handle<v8::Function> fun,
                          v8::Handle<v8::Value> data) {
   if (!i::V8::IsRunning()) return Local<Value>();