Add a WebKit API that registers a V8 extension to be loaded into content

chrome/renderer/extensions/renderer_extension_bindings.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/extensions/renderer_extension_bindings.h"
 
 #include "app/resource_bundle.h"
 #include "base/basictypes.h"
 #include "base/values.h"
 #include "chrome/common/render_messages.h"
@@ skipping 175 matching lines @@
 
   return v8_values;
 }
 
 }  // namespace
 
 const char* RendererExtensionBindings::kName =
     "chrome/RendererExtensionBindings";
 
 v8::Extension* RendererExtensionBindings::Get() {
-  return new ExtensionImpl();
+  static v8::Extension* extension = new ExtensionImpl();
+  return extension;
 }
 
 void RendererExtensionBindings::Invoke(const std::string& function_name,
                                        const ListValue& args,
                                        RenderView* renderview) {
   v8::HandleScope handle_scope;
   std::vector< v8::Handle<v8::Value> > argv = ListValueToV8(args);
   EventBindings::CallFunction(function_name, argv.size(), &argv[0], renderview);
 }