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

content/shell/renderer/test_runner/web_ax_object_proxy.cc

Index: content/shell/renderer/test_runner/web_ax_object_proxy.cc
diff --git a/content/shell/renderer/test_runner/web_ax_object_proxy.cc b/content/shell/renderer/test_runner/web_ax_object_proxy.cc
index 9771d5dc5b7716710429c7fd1689d63cc824793c..aaf7bb7aaea5ec3e806cbd23f526ec11469b3dac 100644
--- a/content/shell/renderer/test_runner/web_ax_object_proxy.cc
+++ b/content/shell/renderer/test_runner/web_ax_object_proxy.cc
@@ -1108,7 +1108,7 @@ v8::Handle<v8::Object> WebAXObjectProxyList::GetOrCreate(
       isolate, new WebAXObjectProxy(object, this)).ToV8();
   if (value_handle.IsEmpty())
     return v8::Handle<v8::Object>();
-  v8::Handle<v8::Object> handle = value_handle->ToObject();
+  v8::Handle<v8::Object> handle = value_handle->ToObject(isolate);
   elements_.Append(handle);
   return handle;
 }
@@ -1120,7 +1120,7 @@ v8::Handle<v8::Object> WebAXObjectProxyList::CreateRoot(
       isolate, new RootWebAXObjectProxy(object, this)).ToV8();
   if (value_handle.IsEmpty())
     return v8::Handle<v8::Object>();
-  v8::Handle<v8::Object> handle = value_handle->ToObject();
+  v8::Handle<v8::Object> handle = value_handle->ToObject(isolate);
   elements_.Append(handle);
   return handle;
 }