[Ozone] Rename GetVSyncProvider to CreateVSyncProvider

ui/gfx/ozone/surface_factory_ozone.h

Index: ui/gfx/ozone/surface_factory_ozone.h
diff --git a/ui/gfx/ozone/surface_factory_ozone.h b/ui/gfx/ozone/surface_factory_ozone.h
index c09a65ff8c722e3d29bef77cfe1cf188606344a3..494c5be447e34114a6ad94d3878da6642647b5a0 100644
--- a/ui/gfx/ozone/surface_factory_ozone.h
+++ b/ui/gfx/ozone/surface_factory_ozone.h
@@ -6,6 +6,7 @@
 #define UI_GFX_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_
 
 #include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/native_library.h"
 #include "ui/gfx/gfx_export.h"
 #include "ui/gfx/native_widget_types.h"
@@ -125,8 +126,9 @@ class GFX_EXPORT SurfaceFactoryOzone {
   // that this may be called after we have entered the sandbox so if there are
   // operations (e.g. opening a file descriptor providing vsync events) that
   // must be done outside of the sandbox, they must have been completed
-  // in InitializeHardware. Returns NULL on error.
-  virtual gfx::VSyncProvider* GetVSyncProvider(gfx::AcceleratedWidget w) = 0;
+  // in InitializeHardware. Returns an empty scoped_ptr on error.
+  virtual scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider(
+      gfx::AcceleratedWidget w) = 0;
 
   // Returns an array of EGL properties, which can be used in any EGL function
   // used to select a display configuration. Note that all properties should be