Add invokeCallback functionality to the code generator

Source/bindings/templates/callback_interface.cpp

 // Copyright 2014 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.
 
 // This file has been auto-generated by {{code_generator}}. DO NOT MODIFY!
 
 #include "config.h"
 {% filter conditional(conditional_string) %}
 #include "{{v8_class}}.h"
 
@@ skipping 43 matching lines @@
         {{return_default}};
     }
     {% endfor %}
     {% if method.arguments %}
     v8::Handle<v8::Value> argv[] = { {{method.arguments | join(', ', 'handle')}} };
     {% else %}
     {# Empty array initializers are illegal, and don't compile in MSVC. #}
     v8::Handle<v8::Value> *argv = 0;
     {% endif %}
 
-    {% set this_handle_parameter = 'thisHandle, ' if method.call_with_this_handle else '' %}
+    {% set this_handle_parameter = 'thisHandle, ' if method.call_with_this_handle else 'm_scriptState->context()->Global(), ' %}
     {% if method.idl_type == 'boolean' %}
-    return invokeCallback(m_scriptState.get(), m_callback.newLocal(isolate), {{this_handle_parameter}}{{method.arguments | length}}, argv);
+    v8::TryCatch exceptionCatcher;
+    exceptionCatcher.SetVerbose(true);
+    ScriptController::callFunction(m_scriptState->executionContext(), m_callback.newLocal(isolate), {{this_handle_parameter}}{{method.arguments | length}}, argv, m_scriptState->isolate());
+    return !exceptionCatcher.HasCaught();
     {% else %}{# void #}
-    invokeCallback(m_scriptState.get(), m_callback.newLocal(isolate), {{this_handle_parameter}}{{method.arguments | length}}, argv);
+    ScriptController::callFunction(m_scriptState->executionContext(), m_callback.newLocal(isolate), {{this_handle_parameter}}{{method.arguments | length}}, argv, m_scriptState->isolate());
     {% endif %}
 }
 
 {% endfor %}
 } // namespace WebCore
 {% endfilter %}