VM initialization refactoring.

src/v8.h

Index: src/v8.h
diff --git a/src/v8.h b/src/v8.h
index aa037d5b9bd9ef8bb2c453ffbbf960af5cdd06ad..776fa9c2be51db5d75f9add7fc6c4698151b3c5f 100644
--- a/src/v8.h
+++ b/src/v8.h
@@ -84,7 +84,6 @@ class V8 : public AllStatic {
   static void TearDown();
   static bool IsRunning() { return is_running_; }
   static bool UseCrankshaft() { return use_crankshaft_; }
-  static void DisableCrankshaft() { use_crankshaft_ = false; }
   // To be dead you have to have lived
   // TODO(isolates): move IsDead to Isolate.
   static bool IsDead() { return has_fatal_error_ || has_been_disposed_; }
@@ -108,6 +107,8 @@ class V8 : public AllStatic {
   static bool IdleNotification();
 
  private:
+  static void InitializeOncePerProcess();
+
   // True if engine is currently running
   static bool is_running_;
   // True if V8 has ever been run