New GCCallbacks with additional parameters.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 26bef9b39856d4dbbe2b276c22167cd113b00eaa..5f9f178e254c12fa655ace13cda0b2b7714d514a 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -3546,6 +3546,30 @@ void V8::SetGlobalGCEpilogueCallback(GCCallback callback) {
 }
 
 
+void V8::AddGCPrologueCallback(GCPrologueCallback callback, GCType gc_type) {
+  if (IsDeadCheck("v8::V8::AddGCPrologueCallback()")) return;
+  i::Heap::AddGCPrologueCallback(callback, gc_type);
+}
+
+
+void V8::RemoveGCPrologueCallback(GCPrologueCallback callback) {
+  if (IsDeadCheck("v8::V8::RemoveGCPrologueCallback()")) return;
+  i::Heap::RemoveGCPrologueCallback(callback);
+}
+
+
+void V8::AddGCEpilogueCallback(GCEpilogueCallback callback, GCType gc_type) {
+  if (IsDeadCheck("v8::V8::AddGCEpilogueCallback()")) return;
+  i::Heap::AddGCEpilogueCallback(callback, gc_type);
+}
+
+
+void V8::RemoveGCEpilogueCallback(GCEpilogueCallback callback) {
+  if (IsDeadCheck("v8::V8::RemoveGCEpilogueCallback()")) return;
+  i::Heap::RemoveGCEpilogueCallback(callback);
+}
+
+
 void V8::PauseProfiler() {
 #ifdef ENABLE_LOGGING_AND_PROFILING
   PauseProfilerEx(PROFILER_MODULE_CPU);