base: Remove OwningMRUCache in favor of scoped_ptrs in MRUCache

ui/ozone/platform/drm/host/drm_overlay_manager.h

Index: ui/ozone/platform/drm/host/drm_overlay_manager.h
diff --git a/ui/ozone/platform/drm/host/drm_overlay_manager.h b/ui/ozone/platform/drm/host/drm_overlay_manager.h
index 7dc667a947cde7e44388cbab881c40db6de31969..6c364d0e75c1cc99d1576d1951112bd176be20c5 100644
--- a/ui/ozone/platform/drm/host/drm_overlay_manager.h
+++ b/ui/ozone/platform/drm/host/drm_overlay_manager.h
@@ -55,11 +55,7 @@ class DrmOverlayManager : public OverlayManagerOzone {
 
   // List of all OverlayCheck_Params which have been validated in GPU side.
   // Value is set to true if we are waiting for validation results from GPU.
-  base::MRUCacheBase<std::vector<OverlayCheck_Params>,
-                     bool,
-                     std::less<std::vector<OverlayCheck_Params>>,
-                     base::MRUCacheNullDeletor<bool>>
-      cache_;
+  base::MRUCache<std::vector<OverlayCheck_Params>, bool> cache_;
 
   DISALLOW_COPY_AND_ASSIGN(DrmOverlayManager);
 };