Require V8 to be explicitly initialized before an Isolate is created

src/v8.h

Index: src/v8.h
diff --git a/src/v8.h b/src/v8.h
index 8ae75fb85475dbc13013978849dc299e78798052..13c33e1860f4adf535b4d19c37283e9bfe1c0136 100644
--- a/src/v8.h
+++ b/src/v8.h
@@ -49,17 +49,11 @@
 namespace v8 {
 namespace internal {
 
-class Deserializer;
-
 class V8 : public AllStatic {
  public:
   // Global actions.
 
-  // If Initialize is called with des == NULL, the initial state is
-  // created from scratch. If a non-null Deserializer is given, the
-  // initial state is created by reading the deserialized data into an
-  // empty heap.
-  static bool Initialize(Deserializer* des);
+  static bool Initialize();
   static void TearDown();
 
   // Report process out of memory. Implementation found in api.cc.