Fix namespace for src/ui/display/.

ui/ozone/platform/cast/ozone_platform_cast.cc

Index: ui/ozone/platform/cast/ozone_platform_cast.cc
diff --git a/ui/ozone/platform/cast/ozone_platform_cast.cc b/ui/ozone/platform/cast/ozone_platform_cast.cc
index ac9e8c92a9ac92e0e9d8af0ae40efbf3016c6012..f26d221c9f9eb370455eb716b35fac38277b2bf4 100644
--- a/ui/ozone/platform/cast/ozone_platform_cast.cc
+++ b/ui/ozone/platform/cast/ozone_platform_cast.cc
@@ -75,7 +75,7 @@ class OzonePlatformCast : public OzonePlatform {
     return base::WrapUnique<PlatformWindow>(
         new PlatformWindowCast(delegate, bounds));
   }
-  std::unique_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate()
+  std::unique_ptr<display::NativeDisplayDelegate> CreateNativeDisplayDelegate()
       override {
     NOTREACHED();
     return nullptr;