remove some calls to to-be-deprecated v8::Value::To* functions

content/renderer/pepper/message_channel.cc

Index: content/renderer/pepper/message_channel.cc
diff --git a/content/renderer/pepper/message_channel.cc b/content/renderer/pepper/message_channel.cc
index 1a4e6383b524f9bd4a3b805b14aec4adf8b0d328..2b1beb8e5d992bb7ff069ebd770bb45dbf79dbaf 100644
--- a/content/renderer/pepper/message_channel.cc
+++ b/content/renderer/pepper/message_channel.cc
@@ -92,7 +92,8 @@ MessageChannel* MessageChannel::Create(PepperPluginInstanceImpl* instance,
   v8::Context::Scope context_scope(instance->GetMainWorldContext());
   gin::Handle<MessageChannel> handle =
       gin::CreateHandle(instance->GetIsolate(), message_channel);
-  result->Reset(instance->GetIsolate(), handle.ToV8()->ToObject());
+  result->Reset(instance->GetIsolate(),
+                handle.ToV8()->ToObject(instance->GetIsolate()));
   return message_channel;
 }