Remove implicit conversions from scoped_refptr to T* in mojo/

mojo/examples/pepper_container_app/mojo_ppapi_globals.cc

Index: mojo/examples/pepper_container_app/mojo_ppapi_globals.cc
diff --git a/mojo/examples/pepper_container_app/mojo_ppapi_globals.cc b/mojo/examples/pepper_container_app/mojo_ppapi_globals.cc
index 33f87176051b16908b6ff36cdcf992dea3a3a62d..aaf9b0a7ba1ca5083422777827126d6dc1f7592b 100644
--- a/mojo/examples/pepper_container_app/mojo_ppapi_globals.cc
+++ b/mojo/examples/pepper_container_app/mojo_ppapi_globals.cc
@@ -155,7 +155,7 @@ PP_Module MojoPpapiGlobals::GetModuleForInstance(PP_Instance instance) {
 
 ppapi::MessageLoopShared* MojoPpapiGlobals::GetCurrentMessageLoop() {
   if (base::MessageLoopProxy::current().get() == GetMainThreadMessageLoop()) {
-    if (!main_thread_message_loop_resource_) {
+    if (!main_thread_message_loop_resource_.get()) {
       main_thread_message_loop_resource_ = new MainThreadMessageLoopResource(
           GetMainThreadMessageLoop());
     }