Various extension-related cleanup and simplifications.

src/bootstrapper.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 72 matching lines @@
   FixedArray* cache_;
   DISALLOW_COPY_AND_ASSIGN(SourceCodeCache);
 };
 
 
 // The Boostrapper is the public interface for creating a JavaScript global
 // context.
 class Bootstrapper {
  public:
   static void InitializeOncePerProcess();
+  static void TearDownExtensions();
 
   // Requires: Heap::SetUp has been called.
   void Initialize(bool create_heap_objects);
   void TearDown();
 
   // Creates a JavaScript Global Context with initial object graph.
   // The returned value is a global handle casted to V8Environment*.
   Handle<Context> CreateEnvironment(
       Handle<Object> global_object,
       v8::Handle<v8::ObjectTemplate> global_template,
@@ skipping 36 matching lines @@
   List<char*>* delete_these_non_arrays_on_tear_down_;
   // This is for delete[]
   List<char*>* delete_these_arrays_on_tear_down_;
 
   friend class BootstrapperActive;
   friend class Isolate;
   friend class NativesExternalStringResource;
 
   explicit Bootstrapper(Isolate* isolate);
 
+  static v8::Extension* free_buffer_extension_;
+  static v8::Extension* gc_extension_;
+  static v8::Extension* externalize_string_extension_;
+  static v8::Extension* statistics_extension_;
+  static v8::Extension* trigger_failure_extension_;
+
   DISALLOW_COPY_AND_ASSIGN(Bootstrapper);
 };
 
 
 class BootstrapperActive BASE_EMBEDDED {
  public:
   explicit BootstrapperActive(Bootstrapper* bootstrapper)
       : bootstrapper_(bootstrapper) {
     ++bootstrapper_->nesting_;
   }
@@ skipping 24 matching lines @@
     return length_;
   }
  private:
   const char* data_;
   size_t length_;
 };
 
 }}  // namespace v8::internal
 
 #endif  // V8_BOOTSTRAPPER_H_