Remove implicit conversions from scoped_refptr to T* in mojo/

mojo/services/view_manager/context_factory_impl.cc

Index: mojo/services/view_manager/context_factory_impl.cc
diff --git a/mojo/services/view_manager/context_factory_impl.cc b/mojo/services/view_manager/context_factory_impl.cc
index 67726594581c6745265fd4aba4ad8766a303f144..a4f7d90dcedc4e67e36641b7591559faf1b1d11b 100644
--- a/mojo/services/view_manager/context_factory_impl.cc
+++ b/mojo/services/view_manager/context_factory_impl.cc
@@ -48,13 +48,13 @@ void ContextFactoryImpl::RemoveReflector(
 
 scoped_refptr<cc::ContextProvider>
 ContextFactoryImpl::SharedMainThreadContextProvider() {
-  if (!shared_main_thread_contexts_ ||
+  if (!shared_main_thread_contexts_.get() ||
       shared_main_thread_contexts_->DestroyedOnMainThread()) {
     bool lose_context_when_out_of_memory = false;
     shared_main_thread_contexts_ =
         webkit::gpu::ContextProviderInProcess::CreateOffscreen(
             lose_context_when_out_of_memory);
-    if (shared_main_thread_contexts_ &&
+    if (shared_main_thread_contexts_.get() &&
         !shared_main_thread_contexts_->BindToCurrentThread())
       shared_main_thread_contexts_ = NULL;
   }