Remove more calls to HandleScope default ctor.

chrome/renderer/extensions/dispatcher.cc

 // 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.
 
 #include "chrome/renderer/extensions/dispatcher.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
 #include "base/json/json_reader.h"
@@ skipping 361 matching lines @@
   module_system->SetLazyField(chrome, "webstore", "webstore", "chromeWebstore");
 }
 
 // Calls a method |method_name| in a module |module_name| belonging to the
 // module system from |context|. Intended as a callback target from
 // ChromeV8ContextSet::ForEach.
 void CallModuleMethod(const std::string& module_name,
                       const std::string& method_name,
                       const base::ListValue* args,
                       ChromeV8Context* context) {
-  v8::HandleScope handle_scope;
+  v8::HandleScope handle_scope(context->isolate());
   v8::Context::Scope context_scope(context->v8_context());
 
   scoped_ptr<content::V8ValueConverter> converter(
       content::V8ValueConverter::create());
 
   std::vector<v8::Handle<v8::Value> > arguments;
   for (base::ListValue::const_iterator it = args->begin(); it != args->end();
        ++it) {
     arguments.push_back(converter->ToV8Value(*it, context->v8_context()));
   }
@@ skipping 246 matching lines @@
     CHECK(value->IsObject());
     return v8::Handle<v8::Object>::Cast(value);
   }
 
   v8::Handle<v8::Object> new_object = v8::Object::New();
   object->Set(key, new_object);
   return new_object;
 }
 
 void Dispatcher::AddOrRemoveBindingsForContext(ChromeV8Context* context) {
-  v8::HandleScope handle_scope;
+  v8::HandleScope handle_scope(context->isolate());
   v8::Context::Scope context_scope(context->v8_context());
 
   // TODO(kalman): Make the bindings registration have zero overhead then run
   // the same code regardless of context type.
   switch (context->context_type()) {
     case Feature::UNSPECIFIED_CONTEXT:
     case Feature::WEB_PAGE_CONTEXT: {
       // Web page context; it's too expensive to run the full bindings code.
       // Hard-code that the app and webstore APIs are available...
       RegisterBinding("app", context);
@@ skipping 902 matching lines @@
     RenderView* background_view =
         ExtensionHelper::GetBackgroundPage(extension_id);
     if (background_view) {
       background_view->Send(new ExtensionHostMsg_EventAck(
           background_view->GetRoutingID()));
     }
   }
 }
 
 }  // namespace extensions