Flip the true/false result of ScriptState::contextIsValid

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 15 matching lines @@
 }
 
 {% for method in methods if not method.is_custom %}
 {{method.cpp_type}} {{v8_class}}::{{method.name}}({{method.argument_declarations | join(', ')}})
 {
     {% set return_default = 'return true'
            if method.idl_type == 'boolean' else 'return' %}{# void #}
     if (!canInvokeCallback())
         {{return_default}};
 
-    if (m_scriptState->contextIsValid())
+    if (!m_scriptState->contextIsValid())
         {{return_default}};
 
     ScriptState::Scope scope(m_scriptState.get());
     {% if method.call_with_this_handle %}
     v8::Handle<v8::Value> thisHandle = thisValue.v8Value();
     if (thisHandle.IsEmpty()) {
         if (!isScriptControllerTerminating())
             CRASH();
         {{return_default}};
     }
@@ skipping 20 matching lines @@
     ScriptController::callFunction(m_scriptState->executionContext(), m_callback.newLocal(m_scriptState->isolate()), {{this_handle_parameter}}{{method.arguments | length}}, argv, m_scriptState->isolate());
     return !exceptionCatcher.HasCaught();
     {% else %}{# void #}
     ScriptController::callFunction(m_scriptState->executionContext(), m_callback.newLocal(m_scriptState->isolate()), {{this_handle_parameter}}{{method.arguments | length}}, argv, m_scriptState->isolate());
     {% endif %}
 }
 
 {% endfor %}
 } // namespace blink
 {% endfilter %}