Clean up VMState a little bit.

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 9ac7c7873ecf607d947627ba1128cc0002d2b4f3..396644b786536ba44d891ea6a1f5e5f127185ca0 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -930,7 +930,7 @@ void Isolate::ReportFailedAccessCheck(JSObject* receiver, v8::AccessType type) {
   HandleScope scope(this);
   Handle<JSObject> receiver_handle(receiver);
   Handle<Object> data(AccessCheckInfo::cast(data_obj)->data(), this);
-  { VMState state(this, EXTERNAL);
+  { VMState<EXTERNAL> state(this);
     thread_local_top()->failed_access_check_callback_(
       v8::Utils::ToLocal(receiver_handle),
       type,
@@ -1009,7 +1009,7 @@ bool Isolate::MayNamedAccess(JSObject* receiver, Object* key,
   bool result = false;
   {
     // Leaving JavaScript.
-    VMState state(this, EXTERNAL);
+    VMState<EXTERNAL> state(this);
     result = callback(v8::Utils::ToLocal(receiver_handle),
                       v8::Utils::ToLocal(key_handle),
                       type,
@@ -1051,7 +1051,7 @@ bool Isolate::MayIndexedAccess(JSObject* receiver,
   bool result = false;
   {
     // Leaving JavaScript.
-    VMState state(this, EXTERNAL);
+    VMState<EXTERNAL> state(this);
     result = callback(v8::Utils::ToLocal(receiver_handle),
                       index,
                       type,
@@ -2116,7 +2116,7 @@ bool Isolate::Init(Deserializer* des) {
   heap_profiler_ = new HeapProfiler(heap());
 
   // Enable logging before setting up the heap
-  logger_->SetUp();
+  logger_->SetUp(this);
 
   // Initialize other runtime facilities
 #if defined(USE_SIMULATOR)