Add a code to check module_system

Change-Id: I5a85ee2794bcb3b454ec937859435e62cd12d6ff
Signed-off-by: jaekuk, lee <juku1999@samsung.com>

diff --git a/extensions/renderer/xwalk_extension_renderer_controller.cc b/extensions/renderer/xwalk_extension_renderer_controller.cc
index 01c1ecedc6b32b95aba46da73e91609ff436588e..6c8dd11312ff0db3dc69503dfae6bd3f1b337fa4 100755 (executable)
--- a/extensions/renderer/xwalk_extension_renderer_controller.cc
+++ b/extensions/renderer/xwalk_extension_renderer_controller.cc
@@ -91,9 +91,12 @@ void XWalkExtensionRendererController::DidCreateScriptContext(
 void XWalkExtensionRendererController::WillReleaseScriptContext(
     v8::Handle<v8::Context> context) {
   v8::Context::Scope contextScope(context);
+  XWalkModuleSystem* module_system = XWalkModuleSystem::GetModuleSystemFromContext(context);
+  if (module_system) {
+    plugin_session_count--;
+    LOGGER(DEBUG) << "plugin_session_count : " << plugin_session_count;
+  }
   XWalkModuleSystem::ResetModuleSystemFromContext(context);
-  plugin_session_count--;
-  LOGGER(DEBUG) << "plugin_session_count : " << plugin_session_count;
 }
 
 void XWalkExtensionRendererController::OnReceivedIPCMessage(