Remove implicit conversions from scoped_refptr to T* in ui/

ui/gl/gl_fence_nv.cc

Index: ui/gl/gl_fence_nv.cc
diff --git a/ui/gl/gl_fence_nv.cc b/ui/gl/gl_fence_nv.cc
index 9dbc47d1d8c49272853d2edd26c6c75bd8f66443..46dadd5fc57f86d075da049042009c12daef382e 100644
--- a/ui/gl/gl_fence_nv.cc
+++ b/ui/gl/gl_fence_nv.cc
@@ -37,7 +37,7 @@ bool GLFenceNV::HasCompleted() {
 
 void GLFenceNV::ClientWait() {
   DCHECK(glIsFenceNV(fence_));
-  if (!flush_event_ || flush_event_->IsSignaled()) {
+  if (!flush_event_.get() || flush_event_->IsSignaled()) {
     glFinishFenceNV(fence_);
   } else {
     LOG(ERROR) << "Trying to wait for uncommitted fence. Skipping...";