Remove more calls to HandleScope default ctor.

chrome/renderer/extensions/module_system.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_MODULE_SYSTEM_H_
 #define CHROME_RENDERER_EXTENSIONS_MODULE_SYSTEM_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 116 matching lines @@
   void SetNativeLazyField(v8::Handle<v8::Object> object,
                           const std::string& field,
                           const std::string& module_name,
                           const std::string& module_field);
 
   // Passes exceptions to |handler| rather than console::Fatal.
   void SetExceptionHandlerForTest(scoped_ptr<ExceptionHandler> handler) {
     exception_handler_ = handler.Pass();
   }
 
+  v8::Isolate* GetIsolate() const;
+
  protected:
   friend class ChromeV8Context;
   virtual void Invalidate() OVERRIDE;
 
  private:
   typedef std::map<std::string, linked_ptr<NativeHandler> > NativeHandlerMap;
 
   // Retrieves the lazily defined field specified by |property|.
   static void LazyFieldGetter(v8::Local<v8::String> property,
                               const v8::PropertyCallbackInfo<v8::Value>& info);
@@ skipping 57 matching lines @@
   scoped_ptr<ExceptionHandler> exception_handler_;
 
   std::set<std::string> overridden_native_handlers_;
 
   DISALLOW_COPY_AND_ASSIGN(ModuleSystem);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_MODULE_SYSTEM_H_