[Ozone] Rename GetVSyncProvider to CreateVSyncProvider

ui/gfx/ozone/impl/file_surface_factory.cc

Index: ui/gfx/ozone/impl/file_surface_factory.cc
diff --git a/ui/gfx/ozone/impl/file_surface_factory.cc b/ui/gfx/ozone/impl/file_surface_factory.cc
index 9d34f7f95a365d5010e6a7f4e23b47c7f4e652fa..1f440dbddf94b4edb4cc80b98a218fcd0781ff56 100644
--- a/ui/gfx/ozone/impl/file_surface_factory.cc
+++ b/ui/gfx/ozone/impl/file_surface_factory.cc
@@ -12,6 +12,7 @@
 #include "third_party/skia/include/core/SkBitmapDevice.h"
 #include "third_party/skia/include/core/SkDevice.h"
 #include "ui/gfx/codec/png_codec.h"
+#include "ui/gfx/vsync_provider.h"
 
 namespace {
 
@@ -89,8 +90,9 @@ SkCanvas* FileSurfaceFactory::GetCanvasForWidget(AcceleratedWidget w) {
   return canvas_.get();
 }
 
-VSyncProvider* FileSurfaceFactory::GetVSyncProvider(AcceleratedWidget w) {
-  return NULL;
+scoped_ptr<VSyncProvider> FileSurfaceFactory::CreateVSyncProvider(
+    AcceleratedWidget w) {
+  return scoped_ptr<VSyncProvider>();
 }
 
 }  // namespace gfx