Require explicit selection of traits for LazyInstance

ui/ozone/platform/cast/overlay_manager_cast.cc

 // Copyright 2015 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.
 
 #include "ui/ozone/platform/cast/overlay_manager_cast.h"
 
 #include "base/lazy_instance.h"
 #include "base/memory/ptr_util.h"
 #include "ui/gfx/geometry/rect_conversions.h"
 #include "ui/ozone/public/overlay_candidates_ozone.h"
 
 namespace ui {
 namespace {
 
-base::LazyInstance<OverlayManagerCast::OverlayCompositedCallback>
-    g_overlay_composited_callback = LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<OverlayManagerCast::OverlayCompositedCallback>::
+    DestructorAtExit g_overlay_composited_callback = LAZY_INSTANCE_INITIALIZER;
 
 // Translates a gfx::OverlayTransform into a VideoPlane::Transform.
 // Could be just a lookup table once we have unit tests for this code
 // to ensure it stays in sync with OverlayTransform.
 chromecast::media::VideoPlane::Transform ConvertTransform(
     gfx::OverlayTransform transform) {
   switch (transform) {
     case gfx::OVERLAY_TRANSFORM_NONE:
       return chromecast::media::VideoPlane::TRANSFORM_NONE;
     case gfx::OVERLAY_TRANSFORM_FLIP_HORIZONTAL:
@@ skipping 56 matching lines @@
   return base::MakeUnique<OverlayCandidatesCast>();
 }
 
 // static
 void OverlayManagerCast::SetOverlayCompositedCallback(
     const OverlayCompositedCallback& cb) {
   g_overlay_composited_callback.Get() = cb;
 }
 
 }  // namespace ui