Replace Pass() with std::move in ui/ozone

ui/ozone/platform/drm/ozone_platform_gbm.cc

Index: ui/ozone/platform/drm/ozone_platform_gbm.cc
diff --git a/ui/ozone/platform/drm/ozone_platform_gbm.cc b/ui/ozone/platform/drm/ozone_platform_gbm.cc
index d8ee6a2c4a24a3ce44dc2d792188d9b109389db7..487389b256bbe410c1a28669e2340075a642c21e 100644
--- a/ui/ozone/platform/drm/ozone_platform_gbm.cc
+++ b/ui/ozone/platform/drm/ozone_platform_gbm.cc
@@ -105,7 +105,7 @@ class OzonePlatformGbm : public OzonePlatform {
                           event_factory_ozone_.get(), cursor_.get(),
                           window_manager_.get(), display_manager_.get()));
     platform_window->Initialize();
-    return platform_window.Pass();
+    return std::move(platform_window);

[spang, 2015/12/16 17:25:32]

Unnecessary move.

[mkollaro, 2015/12/17 12:02:37]

I get an error here without it:

../../../ui/ozone/platform/drm/ozone_platform_gbm.cc:108:12: error: no viable
conversion from returned value of type 'scoped_ptr<ui::DrmWindowHost>' to
function return type 'scoped_ptr<ui::PlatformWindow>'
    return platform_window;

   }
   scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate() override {
     return make_scoped_ptr(